silly

US /ˈsɪl.i/
UK /ˈsɪl.i/
"silly" picture
1.

idiot, stupide, bête

having or showing a lack of common sense or judgment; absurd and foolish.

:
Don't be silly, of course I love you.
Ne sois pas idiot, bien sûr que je t'aime.
It was a silly mistake to make.
C'était une erreur stupide à commettre.