->''"Apparently I've lost the'' falatus ''to speak properly!"''
-->-- '''Colonel O'Neill''', ''Series/StargateSG1''

Our heroes are faced with yet another impending disaster of the week but would probably be fairly easy to solve. The problem is that the key character for this task has lost his ability to communicate.

In ScienceFiction, this is often a form of PhlebotinumBreakdown applied to the TranslatorMicrobes.

It may result in a MonsterIsAMommy plot. Also, [[SelfDemonstratingArticle chicken legs are the truth of deciding diarhoe.]]

The name of this trope comes from a [[TowerOfBabel structure in the Bible]] that mankind built to reach the heavens [[AGodAmI and become gods themselves]]. ''The'' {{God}} didn't like that, so He made all of them speak different languages to create mass confusion and halt the construction.

Often the main reason for PoorCommunicationKills. See also TongueTied and CannotSpitItOut. When the style of language is the barrier rather than the language itself, they're a StrangeSyntaxSpeaker.

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!!Examples:

[[foldercontrol]]

[[folder:Comic Books]]
* In the aptly-titled "Tower of Babel" StoryArc of the comic book ''JusticeLeagueOfAmerica'', Ra's Al Ghul renders the entire ''world'' both aphasic and dyslexic.
[[/folder]]

[[folder:Literature]]
* The original Tower Of Babel in ''Literature/TheBible''.
** The fate of the N.I.C.E. in C. S. Lewis' ''Literature/ThatHideousStrength'' is a ShoutOut to the Biblical Tower of Babel.
** The Tower of Babel story is OlderThanTheyThink -- an older Sumerian version of the story exists, [[http://www.ancient-hebrew.org/36_babel.html as told here]].
** The curse is then reversed at Pentecost, where the Spirit gave the apostles the ability to speak every language that existed in the known world. This was eventually considered a "sign gift" and became a matter of controversy that Paul dealt with in his epistles.
* In ''Literature/SnowCrash'', the BigBad is attempting to spread an informational [[TheVirus virus]] that causes infected people to revert to the "language of Babel", supposedly a primitive language wired into the human brainstem. He uses this language to essentially take control of their minds. The language is incomprehensible to anyone who is uninfected and hasn't studied it extensively.
* Octavia E. Butler's short story ''Speech Sounds'' explores the aftermath of a pandemic plague that has left the vast majority of humans unable to speak, read, comprehend language, or some combination thereof.
* In the ''MechWarrior: Dark Age'' novels, one mech jock suffers brain damage in battle, she is still largely able to communicate, but she switches out key words. Due to the severity of the situation, she is pressed into battle despite her injuries, and is killed in the next fight.
* ''[[Literature/AMagesPower A Mage's Power]]'': Zaticana, goddess of language, deliberately caused the original split in Tariatla's languages. She didn't do this as a punishment, but because [[ItAmusedMe she thought the results would be fun to watch.]]
[[/folder]]

[[folder:Live Action TV]]
* The ''Series/BuffyTheVampireSlayer'' episode "Hush" took this to the extreme, when ''the entire town'' had their voices taken away by the [[MonsterOfTheWeek Monsters of the Week]].
* ''Series/DoctorWho'':
** In ''[[Recap/DoctorWhoS18E1TheLeisureHive The Leisure Hive]]'', a Foamasi detective is presented as a villain until we find that he just lacks a speech synthesizer.
** ''[[Recap/DoctorWhoS17E3TheCreatureFromThePit The Creature from the Pit]]'': Same thing. (Same scriptwriter, too.)
* The [[MonsterOfTheWeek patient-of-the-week]] in one episode of ''Series/{{House}}'' is dysphasic. So in a twist on the usual plot, the patient has a diagnosis-cracking secret, and really wants to reveal it, but he can't.
** The pilot episode of the show centered on a schoolteacher who was suddenly stricken with Aphasia before losing consciousness. She did have the presence of mind to write a message on the chalkboard to the students to call the nurse. (The cause turned out to be parasite in her brain from something she ate).
* In a small arc in season 6, Sun-Hwa Kwon of ''{{Lost}}'' manages to lose her ability to speak English. Only she can still write in English, so there's no barrier to communication, and she's fine three episodes later. This is, unsurprisingly, generally considered one of the more pointless story arcs in the series' history.
* In an episode of ''{{Monk}}'', Adrian Monk developed aphasia as a result of the shock of seeing his formerly-immaculate apartment wrecked by an earthquake. It led to a gag at the end, where Monk delivers the episode's NecroCam [[TheSummation Summation]] in that same gibberish.
* ''Series/PowerRangersSPD'', "Recognition": Sky [[FreakyFriday switches bodies]] with an alien who is physically unable to speak English (and the alien deliberately breaks the translator for good measure).
* This happened to the cast in the ''Series/SoWeird'' episode "Babble", due to their exposure to a stone from the tower.
* In the ''Series/StargateSG1'' episode "The Fifth Race", Jack loses his ability to speak anything other than Ancient after having an ancient library dumped into his brain. [[RecycledScript The exact same thing happens again]] in "Lost City", but that time it's intentional.
* ''Series/StarTrekDeepSpaceNine'', "Babel": The station's occupants are exposed to a disease that disrupts their speech centers, causing the victims to develop aphasia.
* ''Series/StarTrekTheNextGeneration'', "Loud as a Whisper": The only diplomat who can broker a peace is rendered mute when his telepathic translators are killed. Turns out good in the long run when he decides to [[spoiler:force the warring parties to spend weeks learning to communicate with him, and thus cool their tempers and learn to cooperate.]]
* ''Series/StarTrekVoyager'', "Think Tank": Really the converse of this trope, Voyager is able to escape the think-tank's plan by disrupting the ability of its members to communicate with each other.
** In another episode, Neelix's universal translator suddenly fails while he is on a trading away mission, rendering him unable to communicate with his trading partners. An alien named Arturis, [[ThisLooksLikeAJobForAquaman who happens to be from a species which is exceptionally good in learning languages]], comes to Neelix' rescue by playing his interpreter. Out of gratitude, Neelix invites him to the ''Voyager''. [[spoiler: It later turns out that Arturis very probably has [[ThePlan orchestrated]] this whole incident, because he needed to gain the crew's trust for his plans of revenge. ([[ItMakesSenseInContext He considers Cpt. Janeway to be responsible for the Borg assimilating his species.]])]]
* In one episode of Series/RedDwarf:
-->'''[[ArtificialIntelligence Holly:]]''' Rude alert! Rude alert! An electrical fire has knocked out my voice recognition unicycle! Many Wurlitzers are missing from my database. Abandon shop! This is not a daffodil. Repeat, this is not a daffodil.
[[/folder]]

[[folder:Webcomics]]
* For a number of strips of ''Webcomic/TheOrderOfTheStick'', Haley Starshine could only speak in cryptograms that would change in every strip. Allowing readers who were clever/determined enough to figure out what she was saying.
* One post-revival arc of ''Webcomic/{{Fans}}'' had the villains remove all written language from history, resulting in worldwide illiteracy and an inability to communicate by writing.
[[/folder]]

[[folder:Web Original]]
* In the final arc of ''Literature/{{Worm}}'', [[spoiler:Taylor]] loses her ability to comprehend language as the result of Panacea tampering with her brain.
[[/folder]]

[[folder:Western Animation]]
* In one episode of ''WesternAnimation/BatmanBeyond'', appropriately named "Babel", Shriek messes with soundwaves, preventing anyone in Gotham City from being able to communicate intelligibly.
* In ''WesternAnimation/{{Futurama}}'', Leela learns that some giant alien brains are rendering everyone on Earth into idiots... and then she falls under their power, too, and can barely talk well enough to explain the problem to the one person who can help.
--> '''Leela''': [with urgency] "Brain! Big brain make dumb."
--> '''Fry''': [patiently] "No, Leela, brains make you smart."
--> '''Leela''': "Nooo!"
* In one episode of ''WesternAnimation/MyLifeAsATeenageRobot'', Jenny saves Tokyo from some monsters and comes back home after. Problem is, she had switched language discs from English to Japanese and lost her English disc in Tokyo. She suffers the majority of the episode--and half a battle with the Japanese monsters--speaking Japanese, even though [[FridgeLogic one assumes her mother could've just burned her a new english disc]]. Luckily, a kid she saved back in Japan shows up with a tour group to give the English disc to her.
* In one episode of ''ThePowerpuffGirls'', a pack of squirrels raise a ruckus after the Mayor builds a statue over the spot where they'd been burying their acorns. Bubbles, who can talk to animals, is unable to sort things out because she had been rendered mute after a bee she nearly swallowed stung her in the throat.
* In the episode "Babel" of ''WesternAnimation/GreenLanternTheAnimatedSeries'' Hal, Kilowog, and Razer's rings run out of power so they can't translate each others native tongues.
[[/folder]]

[[folder:Real Life]]
* A CBS news reporter suffered from this while on the air, leading to widespread speculation that she had suffered a stroke. It was later [[http://www.foxnews.com/health/2011/02/18/complex-migraine-cbs-reporters-air-health-scare/ found]] to be caused by an unusual form of migraine headache.
* Aphasia is the RealLife version of this. It can be caused by strokes, brain damage, migraine headaches, and so on.
** Blogger and author M.Giant recounts his experience with temporary aphasia [[http://velcrometer.blogspot.com/2004/10/my-brain-hurtseverybody-kn_109832870557686270.html here.]]
[[/folder]]
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