bête

C'est tellement bete que personne n'y a pense.

It is so silly that nobody thought of it.

Ne sois pas bete, accepte son aide.

Do not be silly, accept his help.

Quelle question bete !

What a stupid question!

Je me suis senti bête d'avoir oublié son nom.

I felt foolish for having forgotten his name.

C'est une erreur bête mais qui peut coûter cher.

It is a silly mistake but one that can cost dearly.