281 entries under foolish topic. ×

1
crazed(adjective, wild, stupid, crazy)
1
deranged(adjective, wild, stupid, crazy)
1
ape(crazy, mad, insane, unwise)
1
backward(adjective, stupid, vague, impulsive)
1
bathetic(dull, soft, flat, sweet)
1
being a sucker(expression, innocent, susceptible, naive)
1
believing(innocent, susceptible, naive, trusting)
1
berserk(crazy, mad, insane, unwise)
1
beyond all reason(expression, idiom, fantastic, half-baked)
1
biting(innocent, susceptible, naive, trusting)
1
capricious(stupid, senseless, unreliable, changeable)
1
daydreaming(adjective, indifferent, idle, blank)
1
delirious(crazy, mad, unreasonable, insane)
1
dingy(mad, insane, unwise)
1
easily taken in(expression, innocent, susceptible, naive)
1
easy mark(expression, simple, innocent, naive)
1
falling hook line and sinker(expression, innocent, susceptible, naive)
1
far-fetched(adjective, stupid, senseless, irrational)
1
feebleminded(weak, simple, thoughtless, unwise)
1
flipped(mad, insane, unwise)
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APASmart Define. (2016). silly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/silly/thesaurus/synonyms
ChicagoSmart Define. 2016. "silly thesaurus" https://smartdefine.org/silly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, silly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/silly/thesaurus/synonyms>.
MLASmart Define. "silly thesaurus" 20 January 2016. Web. 23 September 2026. <https://smartdefine.org/silly/thesaurus/synonyms>