%% Image selected per Image Pickin' thread: http://tvtropes.org/pmwiki/posts.php?discussion=1366233863080670900
%% Please do not replace or remove without starting a new thread.
%%
[[quoteright:350:[[Webcomic/TheOrderOfTheStick http://static.tvtropes.org/pmwiki/pub/images/hate_at_first_sight_oots_13_full_7364.png]]]]

->'''Galinda:''' What is this feeling so sudden and new\\
'''Elphaba''': I felt the moment I laid eyes on you\\
'''Galinda''': My pulse is rushing\\
'''Elphaba''': My head is reeling\\
'''Galinda''': My face is flushing\\
'''Both''': What is this feeling? / Fervid as a flame, / Does it have a name? / Yes! Loathing / Unadulterated loathing
-->--''Theatre/{{Wicked}}'', "What is This Feeling?"

Everyone has heard of LoveAtFirstSight. Two people meet and instantly one or both falls in love. Happiness ensues, [[UnrequitedLove except when]] [[VillainousCrush it doesn't]]. On the other hand, sometimes people ''despise'' each other from the first moment they meet, often before they've even really had a chance to get to know each other. That is Hate At First Sight. When it's mutual, there will be lots of blatant antagonism. When it's one sided, the target of hatred [[SomebodyDoesntLoveRaymond might be completely confused.]]

Maybe it's their instincts giving them a hint that they just can't get along with this person or maybe it's just something random and unfounded, but either way one or both characters will simply never get along or at least not without a great deal of trial and tribulation. While you might think that this trope would be particularly common between a hero and a villain, it's actually quite common between two good characters as well.

Compare LoveAtFirstSight. See also IrrationalHatred.

----
!!Examples:

[[foldercontrol]]

[[folder:{{Anime}} and {{Manga}}]]
* In ''LightNovel/BokuWaTomodachiGaSukunai'' almost everyone is some kind of antisocial misfit, so there's a lot of early antagonism of this sort.
** Yozora hates Sena from the moment they meet while Sena wants to be friends, which gradually evolves into an extremely VitriolicBestBuds type relationship due to Yozora constantly being horrible.
** Kobato ''also'' hates Sena from the instant they meet and for much better reasons than Yozora: Sena acts like a creepy stalker towards her.
** Kobato and Maria subvert it though. They look like they hate each other, but are actually best friends. For Kobato, Maria seems to be the only person she ''does'' consider a friend: She avoids all her classmates who want to get along with her.
* Izaya and Shizuo in ''LightNovel/{{Durarara}}'' hated each other instantly. Shizuo could tell exactly what kind of person [[{{Troll}} Izaya]] [[ManipulativeBastard was]] while Izaya was constantly unable to manipulate Shizuo due to his hostility. This hatred only grew over the years due to numerous [[NoodleIncident Noodle Incidents]] during their high school years, and by the time the series starts, there is no hope of any civility between them.
* Yotsuba to Yanda in ''Manga/{{Yotsubato}}''. Yanda tried to enter her house while her dad was away. Yotsuba was taught not to let any strangers in when she's alone. Which leads to her slamming the door on his face. The fact that [[{{Jerkass}} Yanda]] enjoys making her angry on purpose doesn't help improve her opinion of him.
* [[TheHero Bossun]] and [[TheRival Tsubaki's]] ([[ForgottenFirstMeeting not]]) first meeting in ''Manga/SketDance'' wasn't exactly the best. Basically, Tsubaki barged into the Sket-dan's clubroom and began lecturing them about the school rules, and rather rudely touched upon their DarkAndTroubledPast, quickly getting Bossun's hate. Fortunately, their relationship gets better over time, especially after TheReveal, turning their interactions into SitcomArchnemesis instead. Tsubaki's JerkAss KnightTemplar tendencies also gets reduced as [[CharacterDevelopment the story progress,]] and used to show his {{adorkab|le}}ility instead.
* In ''Manga/JojosBizarreAdventure'' Dio Brando immediately saw Jonathan Joestar as an enemy the moment he laid eyes on him. Poor Jonathan only wanted to be friends with Dio. It's not until Dio pulls stunts like stealing Jonathan's love interest Erina's first kiss, killing his dog, poisoning his father, and becoming a mass-murdering vampire that Jonathan sees Dio as an enemy. Even then, Jonathan still considers Dio a brother.
* In volume 10 and episode 11 of season 2's ''LightNovel/OreNoImoutoGaKonnaNiKawaiiWakeGaNai'', Ayase and Kuroneko both instantly dislike each other the first time they formally meet. Ayase doesn't like her [[spoiler:because Kuroneko broke up with him after dating for a while and breaking his heart]], while Kuroneko wonders why Ayase is even visiting him [[spoiler:due to the way she tends to treat him like dirt. She also remembers Ayase from an earlier moment when she first found out about Kirino's ClosetGeek tendencies, and how unaccepting she was of it initially.]]
* In ''Manga/{{Beelzebub}}'', Hilda and Aoi Kunieda got along okay at first, though Hilda is pretty cold. They didn't hate each other during their first met, but they developed a rival relationship. However, [[spoiler:when Hilda got an amnesia, she became a kind, innocent, sweet and naive girl with an obvious crush on Oga. New Hilda hated Aoi (and [[ButtMonkey Furuichi]]) at first sight, though.]]
[[/folder]]

[[folder:{{Film}}]]
* In ''Film/{{Aliens}}'', Ripley immediately detests "artificial person" Bishop upon meeting him in the Marines' mess hall because of her prior experience with a malicious android on board the Nostromo.
* In the Creator/LindsayLohan version of ''Film/TheParentTrap'', Hallie and Annie dislike each other from the moment they first see each other and see they look exactly alike. They start to get along after discovering that they are long lost twins.
* From the moment she first laid her eyes on him, [[{{Film/Madeline}} Madeline]] sees only the bad stuff in [[{{BadassBiker}} Pepito]], calling him a bad hat. Her hatred is sealed when he scares her whole class later that night, dressed as a demon.
* In the first ''Film/{{X-Men}}'' film, Comicbook/{{Wolverine}} and Comicbook/{{Cyclops}} show an ''immediate'' disdain for one-another before even a single line of dialogue is spoken.
[[/folder]]

[[folder:{{Literature}}]]
* In ''Literature/SalemsLot'' Susan's mother hates Ben almost immediately and fabricates several reasons why. Ben satisfies himself by knowing he gets along with her father while Susan and her mother have a major fight over it.
* Rhea in ''Literature/WizardAndGlass'' instantly loathed the young and beautiful Susan. Susan tried to clear the initial bad impression, but the antagonism remains through the rest of the story.
* In ''Literature/TheSilmarillion'' there are two cases among the elves.
** Idril disliked and distrusted her cousin Maeglin, without really knowing why, almost as soon as she met him, though she didn't hate him. He [[VillainousCrush fell in love with her]] and being unable to woo her, [[LoveMakesYouEvil became so embittered]] he eventually betrayed their whole city and got it sacked.
** FŽanor despised and hated his half-siblings before they were even born, and continued to hate them until he died[[labelnote:*]]and in the afterlife, one can guess[[/labelnote]]. And with the "friendly advice" of the BigBad Morgoth he became paranoid, thought they were out to get him, [[CainAndAbel threatened to kill Fingolfin in cold blood, and then betrayed his siblings and their families]] during the Noldorin rebellion. Fingolfin and Finarfin, having done nothing to actually harm FŽanor, were trying to make peace with him.
* In ''Literature/HarryPotter'', Harry dislikes Draco Malfoy from the start. Partly because of his spoiled attitude (which reminds him of his cousin Dudley) and partly because of his lack of sensitivity when Harry mentions he's an orphan. This ends up cemented later when Draco sucks up to Harry on the train after finding out who he is.
* In ''Discworld/CarpeJugulum'', the description of [[FatGirl Agnes Nitt's]] reaction to [[AlphaBitch Lacrimosa de Magpyr]] is summed up as "There ''is'' such a thing as hate at first sight."
* In ''Literature/WarriorCats'', Longtail, Sandstorm, and Dustpelt hate Fireheart the moment he joins the Clan, and the feeling is mutual. Eventually Fireheart [[RescueRomance saves Sandstorm's life and she falls in love with him]], Longtail, without the influence of Darkstripe and Tigerstar, eventually becomes loyal to Fireheart (particularly after Fireheart begins to treat him with more respect), and Dustpelt continues to be a bit of a jerk, but in their old age they begin to relish their rivalry more than anything.
* In Theodore Dreiser's ''An American Tragedy'', Gilbert Griffiths has this reaction to his cousin Clyde just from learning of the latter's existence.
-->"At the thought of a cousin who looked like him ó possibly as attractive in every way as himself ó and bearing his own name, Gilbert chilled and bristled slightly. For here in Lycurgus, up to this time, he was well and favourably known as the only son and heir presumptive to the managerial control of his fatherís business, and to at least a third of the estate, if not more. And now, if by any chance it should come to light that there was a relative, a cousin of his own years and one who looked and acted like him, even ó he bridled at the thought. Forthwith (a psychic reaction which he did not understand and could not very well control) he decided that he did not like him ó could not like him."
[[/folder]]

[[folder:LiveActionTV]]
* A ''Series/ThirdRockFromTheSun'' episode involved Dick getting upset that a cafeteria lady hated him. This is pretty bizarre when you consider how Dick is usually apparently okay with several regular and recurring characters disliking him. In fact, when he got angry that she didn't even hate him for an actual reason, Nina replied "Does she need a reason? 'Cause I can give her reasons."
* ''Series/DeadLikeMe'' has [[TheSnarkKnight George]] reacting this way to [[AlphaBitch Daisy]] when she first shows up.
--> '''George:''' I hated her instantly.
* On ''Series/{{MASH}}'', Hawkeye and B.J.'s first impression of Charles Winchester isn't a particularly good one:
--> '''B.J.:''' Let's avoid the Christmas rush and start hating him now.
[[/folder]]

[[folder:{{Theatre}}]]
* In ''Theatre/{{Wicked}}'', Elphaba (the Wicked Witch of the West pre-wickedness) and Galinda (that is, early Glinda) sing "What Is This Feeling?", sung almost as if it is a lover's ballad, except instead about love at first sight, it's this.
[[/folder]]

[[folder:VideoGames]]
* In ''VideoGame/DuelSaviorDestiny'' Taiga and his magic teacher Downy loathe each other from the moment they first meet. It's not until the final route that they actually have a conversation that isn't completely hostile.
* Lightning towards Snow in the BackStory of ''VideoGame/FinalFantasyXIII'', mainly because the epic clash of [[IceQueen their]] [[IdiotHero personalities]] and because he plans to take [[BigBrotherInstinct her precious Serah]] (her little sister and his fiancee) away from her. It doesn't help any that Snow is generally quite oblivious to this and keeps trying to treat Lightning as a sister-in-law already.
[[/folder]]

[[folder:VisualNovels]]
* In ''VisualNovel/FateStayNight'' Shirou has this reaction at least twice and for similar reasons both times, though he doesn't really consciously recognize it.
** He and Archer are instantly in opposition because Shirou recognizes that Archer embodies his ideals as a hero of justice, but absolutely despises his methods. Archer, in turn, views Shirou as a naive fool whose insistence on fair play, honor and trying to help everyone will just get even more people killed and [[spoiler:will lead him to being crushed by his ideals like Archer himself, who is Shirou's future self.]]
** He's also instantly hostile to Kotomine Kirei, though in this case Shirou doesn't really try to think about it too much and just calls him a fake priest. In truth, [[spoiler:he doesn't really dislike Kotomine, but feels he must oppose him because like Archer he is someone that is just different enough to merit his instant hostilities. He actually ''likes'' Kotomine since they're so similar.]]
* Kyousuke despises Usami from the moment they first meet in ''VisualNovel/GSenjouNoMaou'', though he does his best to hide it. Her passion for justice, her [[spoiler:last name]], her slovenly attitude and her nosiness grate against the antihero Kyousuke. That said, she ''is'' the main heroine of the story, but Usami has to put up with a lot before that.
* Yaginuma and Reiji in are implied to have been instantly antagonistic towards each other in ''VisualNovel/KaraNoShoujo'', though they'd already met before the story began. It's not hard to see why: Yaginuma [[JerkassFacade goes out of his way to be a jerk to everyone]] because of his own traumatic background.
* Akiha has a tendency to hate people quickly in ''VisualNovel/{{Tsukihime}}.'' She instantly takes a dislike to both Ciel and Arcueid. As far as Ciel goes she has pretty solid reasons: Ciel is a member or an organization that [[spoiler:often opposes non human beings such as herself]]. Arcueid, on the other hand, pisses her off because of how whimsical she is as well as being too close to her brother.
* In ''VideoGame/{{Amagami}}'' Miyu instantly has a great deal of loathing for Morishima Haruka, who finds her to be incredibly cute. At first it looks like this is a measure of jealousy due to Miyu being [[LittleSisterHeroine Miyu]], but later arcs show that Miyu is quite supportive of her brother's relationships.
[[/folder]]

[[folder:{{Webcomics}}]]
* Haley and Crystal in ''Webcomic/TheOrderOfTheStick'' met in the thieves guild and within moments had lethal grudges against each other. This cemented Crystal as Haley's rival, meaning she would always be at the same level as Haley or better.
* In ''Webcomic/{{Homestuck}}'' one form of [[BizarreAlienBiology Troll Romance]] is called kismessitude, a romantic relationship based around hate instead of love. When Karkat sees John for the first time on his computer screen, Karkat instantly develops a "hate-crush" on John, and believes him to be his destined kismesis.
[[/folder]]

[[folder:WebVideo]]
* In ''WebVideo/TwoBestFriendsPlay'', while playing ''VideoGame/TheWalkingDead'', Matt mentions how much he usually hates child [=NPCs=] in video games, and how impressed he is at the writers for making Clementine likable. Then Duck shows up, and Matt's reaction--before Duck even has a chance to speak--is "Oh hell no." For the rest of the playthrough, Matt interacts with Duck as little as possible and laughs at Duck's misfortunes.
[[/folder]]

[[folder:WesternAnimation]]
* ''WesternAnimation/TheSimpsons'':
** During one of the more memorable episodes, a new worker joined the power plant named Frank Grimes, who represented an average person dropped into the world of ''The Simpsons''. He quickly became Homer's Enemy, as noted in the episode title, due to how appalled he was at how lax and incompetent Homer was while still having such an idyllic life, which just keeps getting worse as the episode continues. At the end, his hatred gets the better of him and in a fit of anger grabs raw electrical wires while ranting and is killed instantly. [[GallowsHumor At his funeral, a sleeping Homer asks to change the channel and everyone laughs.]]
** One episode from the 2012-13 season featured Creator/TinaFey as a substitute teacher who kept vindictively insulting and punishing Lisa for no apparent reason at all. She eventually admit the reason being is because she thought Lisa was one of those beautiful popular girls. Lisa however, is happy that someone actually thinks she's popular.
[[/folder]]
----