1
hysterical
1
idiot
1
ill-advised(weak, simple, silly, foolish, thoughtless)
1
ill-considered(weak, simple, silly, foolish, thoughtless)
1
illogical
1
imprudent(weak, simple, silly, foolish, thoughtless)
1
in a tizzy(adjective, slang, crazy, mad)
1
incautious(weak, simple, silly, foolish, thoughtless)
1
incongruous
1
indiscreet(weak, simple, silly, foolish, thoughtless)
1
infatuated
1
injudicious(weak, simple, silly, foolish, thoughtless)
1
jocose(adjective, pleasant, happy, cheerful, jolly)
1
jocund(adjective, pleasant, bright, happy, merry)
1
jokey(adjective, pleasant, bright, happy, stupid)
1
jollying(adjective, pleasant, happy, cheerful, jolly)
1
joshing(adjective, pleasant, bright, happy, merry)
1
jubilant(adjective, pleasant, bright, happy, merry)
1
just plain nuts(expression, idiom)
1
kookie
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APASmart Define. (2015). daffy thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/daffy/thesaurus/synonyms
ChicagoSmart Define. 2015. "daffy thesaurus" https://smartdefine.org/daffy/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, daffy thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/daffy/thesaurus/synonyms>.
MLASmart Define. "daffy thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/daffy/thesaurus/synonyms>