Dumb |
Silly |
Dorky |
Dopey |
Nutty |
Inane |
Absurd |
Stupid |
Idiotic |
Dum-dum |
Puerile |
Fatuous |
Foolish |
Mindless |
Pointless |
Ludicrous |
Fatheaded |
Imbecilic |
Brainless |
Obstinate |
Foolhardy |
Laughable |
Senseless? |
Cockamamie |
Ridiculous |
Very silly |
Sans sense |
Harebrained |
Really dumb |
Blockheaded. |
Totally dumb |
Very foolish |
Really silly |
Preposterous |
Knuckleheaded |
Unintelligent |
Not very smart |
Featherbrained |
Utterly absurd |
Totally absurd |
Ill-considered |
Extremely silly |
More than silly |
Totally idiotic |
Inanely foolish |
Utterly foolish |
Dumber than dumb |
Just plain silly |
Just plain stupid |
Not very sensible |
Completely idiotic |
Totally ridiculous |
Utterly ridiculous |
Totally far-fetched |
Completely senseless |
Beneath consideration |
Completely cockamamie |
Literally, "like a donkey |
Word from the Latin for "donkey-like |