Synonyms|1.2kAntonyms|229|Broader|47Narrower|81Related|1.9k

86 entries under insane topic. ×

4
potty(adjective, wild, foolish, stupid, crazy)
3
bizarre(adjective, wild, strange, foolish, stupid)
3
dull(adjective, simple, flat, careless, foolish)
3
eccentric(adjective, wild, strange, foolish, crazy)
3
fantastic(adjective, weak, simple, wild, strange)
3
flaky(adjective, light, wrong, wild, foolish)
3
fruity(foolish, mad, unwise)
3
bonkers(adjective, simple, foolish, crazy, mad)
3
outrageous(adjective, wild, strange, foolish, fantastic)
2
screwball(adjective, foolish, crazy, mad)
2
bats in the belfry(expression, idiom, foolish, mad)
2
erratic(adjective, wrong, wild, foolish, stupid)
2
mad as a March hare(expression, idiom, foolish, mad)
2
mad as a hatter(expression, idiom, foolish, mad)
2
moonstruck(adjective, soft, tender, sweet, wild)
2
nutty as fruitcake(expression, idiom, foolish, mad)
2
odd(adjective, wild, strange, foolish, stupid)
2
of unsound mind(expression, idiom, foolish, stupid, mad)
2
out to lunch(expression, idiom, foolish, crazy, mad)
2
round the bend(expression, idiom, foolish, mad)
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HarvardSmart Define 2016, silly thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/silly/thesaurus/synonyms>.
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