50 entries under adjective topic. ×

1
inapplicable
1
incongruent
1
indecorous
1
inept
1
infelicitous
1
irrelevant
1
premature
1
unbecoming
0
adverse
0
awkward
0
embarrassing
0
impertinent
0
importunate
0
inadequate
0
inadvertent
0
indecent
0
ineligible
0
inexpedient
0
misplaced
0
timeless
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APASmart Define. (2016). opportune thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/opportune/thesaurus/antonyms
ChicagoSmart Define. 2016. "opportune thesaurus" https://smartdefine.org/opportune/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, opportune thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/opportune/thesaurus/antonyms>.
MLASmart Define. "opportune thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/opportune/thesaurus/antonyms>