idiotic

(s) insanely irresponsible
- an idiotic idea
crackbrained,
(s) incongruous;inviting ridicule
- the absurd excuse that the dog ate his homework
- that's a cockeyed idea
- ask a nonsensical question and get a nonsensical answer
- a contribution so small as to be laughable
- it is ludicrous to call a cottage a mansion
- a preposterous attempt to turn back the pages of history
- her conceited assumption of universal interest in her rather dull children was ridiculous
derisory, laughable, nonsensical, preposterous, absurd, cockeyed, ludicrous, ridiculous,
(s) having a mental age of three to seven years imbecile, imbecilic,

Synonyms

crackbrained derisory laughable nonsensical preposterous absurd cockeyed ludicrous ridiculous imbecile imbecilic

Words of close approximity

idiotically