Synonyms|465Antonyms|179|Broader|9Narrower|0Related|830
7
inopportune(adjective, appropriate, suitable)
7
unsuitable(adjective, inopportune)
6
untimely(adjective, inappropriate, inopportune)
5
ill-timed(adjective, not)
5
inappropriate(adjective, inopportune)
4
inconvenient
3
unlucky(adjective, inopportune)
3
not good
2
disadvantageous(adjective, inopportune)
2
improper
2
inapt
2
inauspicious(adjective, inopportune)
2
unfortunate(adjective, inopportune)
2
unsustainable
1
baneful
1
incongruous
1
incorrect
1
unhappy(adjective, inopportune)
1
unseasonable
1
unseemly
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APASmart Define. (2016). opportune thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/opportune/thesaurus/antonyms
ChicagoSmart Define. 2016. "opportune thesaurus" https://smartdefine.org/opportune/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, opportune thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/opportune/thesaurus/antonyms>.
MLASmart Define. "opportune thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/opportune/thesaurus/antonyms>