insanely irresponsible; an idiotic idea

[ Syn: crackbrained ]

incongruous;inviting ridicule; the absurd excuse that the dog ate his homework; thats 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

[ Syn: absurd , cockeyed , derisory , laughable , ludicrous , nonsensical , preposterous , ridiculous ]

having a mental age of three to seven years

[ Syn: imbecile , imbecilic ]