Synonyms|93Antonyms|49|Broader|54Narrower|44Related|156
3
irrational(adjective, characteristic, thoughtlessness, silliness)
3
irreflective(adjective, characteristic, thoughtlessness, silliness)
3
lamebrained(adjective, characteristic, thoughtlessness, silliness)
3
loony(adjective, characteristic, thoughtlessness, silliness)
3
obtuse(adjective, characteristic, thoughtlessness, silliness)
3
rash(adjective, characteristic, thoughtlessness, silliness)
3
unobservant(adjective, characteristic, thoughtlessness, silliness)
3
vacuous(adjective, characteristic, thoughtlessness, silliness)
1
nonreflecting(adjective, characteristic, thoughtlessness, silliness)
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ChicagoSmart Define. 2015. "ruminative thesaurus" https://smartdefine.org/ruminative/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, ruminative thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ruminative/thesaurus/antonyms>.
MLASmart Define. "ruminative thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/ruminative/thesaurus/antonyms>