Synonyms|1.8kAntonyms|425|Broader|29Narrower|28Related|1.9k
11
badly
9
ill(adjective, sick)
7
unsound(adjective, strong, sound, well, flimsy)
6
unhealthy(adjective, sick)
5
sick(adjective, healthy, well)
5
unwell
5
bad
5
disadvantageously
5
indisposed
5
nauseous
5
poorly
5
queasy
5
unfortunate
4
bedridden
4
insane(adjective, sound, sensible, foolish, ill)
4
paranoid
4
weakly
3
ailing
3
bilious
3
delicate
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APASmart Define. (2016). well thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/well/thesaurus/antonyms
ChicagoSmart Define. 2016. "well thesaurus" https://smartdefine.org/well/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2016, well thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/well/thesaurus/antonyms>.
MLASmart Define. "well thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/well/thesaurus/antonyms>