Part of speech:
Unintelligible, foolish, silly, absurd, etc.
The definition of preposterous is something that is absurd or ridiculous.
Impossible to take seriously; silly:
Immature, especially in being silly or trivial; childish.
Eccentric or irrational:
Of or like an ass; esp., having qualities regarded as characteristic of asses; stupid, silly, obstinate, etc.
Of, having the nature of, or characteristic of an idiot; very foolish or stupid
Showing a lack of judgment, sense, or reason; inappropriate or foolish:
Extremely foolish or silly.
Odd, foolish, crazy, etc.
Resulting from or acting with ill-considered haste or boldness.
Easy to understand, do, or carry out:
Having or showing a lack or deficiency of intelligence
Lacking intelligence or wit; foolish.
So senseless as to be laughable
Mentally deranged; crazy.
The definition of crazy is someone or something that is insane or not mentally sound.
(Scot.) Merry or frolicsome in a giddy way
Dizzy is defined as feeling lightheaded or dazed as if from spinning.
Trembling, tottering, or exhibiting mental impairment associated with aging.
Conspicuously unintelligent; stupid:
The definition of fatuous is foolish or silly.
(Informal) Like or characteristic of a goof; stupid and silly
Having or showing little sense; foolish:
Not prudent; without thought of the consequences; lacking in judgment or caution; rash; indiscreet
Irrational is defined as lacking reason or understanding.
Comical or ludicrous because of incongruity or strangeness.
Lunatic is defined as someone or something that is wild, crazy or absurd.
Showing foolishness or stupidity.
Extremely foolish or stupid.
Not sensible; foolish.
Relating to or resembling a goose.
Displaying a complete lack of forethought and good sense
Foolish; ridiculous; absurd:
(Slang) Rude and disrespectful; impudent.
Exhibiting or characterized by careful thought:
Full of caution; careful to avoid danger; circumspect; wary
(Archaic) Feeling or causing sorrow, worry, etc.; anxious
Circumspect is defined as cautious and unwilling to take risks.
Characterized by insanity or the utmost folly; chimerical; unpractical; as, an insane plan, attempt, etc.
(Slang) Excellent; wonderful:
Lacking judgment, realism, or firmness.
(Slang) Foolish; silly:
(Slang) Nervous; jumpy
Not discreet; lacking prudence, as in speech or action
The definition of serious is showing deep thought, not joking, or a situation that requires careful thought.
Find another word for foolish. In this page you can discover 89 synonyms, antonyms, idiomatic expressions, and related words for foolish, like: silly, nonsensical, unwise, anile, preposterous, absurd, puerile, wacky, stupid, asinine and idiotic.