What is the feminine of tired in french?

There isn't a direct feminine form of "fatigué" (tired) in French.

"Fatigué" is a masculine adjective, and it's used for both genders. You would use "fatiguée" for a female person who is tired.

Examples:

* "Il est fatigué." (He is tired.)

* "Elle est fatiguée." (She is tired.)

Let me know if you have any other questions!