"A work written from a feminist perspective. Usually involves female main characters." is the definition I would use.
"For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled." - Richard Feynman
That just sounds like "feminist fiction."
And likely in practice that just mean Female Protagonist and thats it.
So... Should we just cut this then?
Or have a crowner, so we know what options are available?
Disambig Needed: Help with those issues! tvtropes.org/pmwiki/posts.php?discussion=13324299140A37493800&page=24#comment-576
The concept "feminist fantasy" is used for several different, fairly broad definitions. Trying to wedge it into a specific definition would just cause misuse, we have had really bad experience with such attempts.
The difficult point here would be to have a definition that is not overly narrow and yet does not lead to every work with a female main character being listed.
So a fairly broad definition would be warranted. Such as
Locking per New Year Purge.
"For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled." - Richard Feynman
Feminist Science Fiction very clearly refers to a form of the science fiction genre in some way, and it's possible to easily make up a list of important works within that genre that ("Houston Houston Do You Read", "The Female Man", "The Left Hand of Darkness", "The Gate to Women's Country", "The Handmaid's Tale" and so on). But the same is not true of Feminist Fantasy. It can refer to either Fantasy as a genre, or to Fantasy as the creative act. The Feminist qualifier will be fundamentally different in each case.
Looking at the use of the label on the net, I find the following:
To me, the genre meaning can be covered under Feminist Science Fiction, leaving Feminist Fantasy to the other meaning, as an analogue to Power Fantasy.