9
happy(adjective, sad, unhappy, unpleasant, woe)
7
felicitous(adjective, appropriate, suitable, unsuitable)
4
appropriate
3
applicable
3
apposite
3
apt
3
befitting
3
eligible
3
fitting
3
fortunate
3
proper
3
suitable
3
well-chosen(adjective, felicitous)
2
acceptable
2
apropos
2
balanced
2
becoming
2
commendable
2
compatible
2
congratulatory
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APASmart Define. (2016). infelicitous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/infelicitous/thesaurus/antonyms
ChicagoSmart Define. 2016. "infelicitous thesaurus" https://smartdefine.org/infelicitous/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, infelicitous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/infelicitous/thesaurus/antonyms>.
MLASmart Define. "infelicitous thesaurus" 26 January 2016. Web. 25 September 2026. <https://smartdefine.org/infelicitous/thesaurus/antonyms>