3
injudicious(adjective, characteristic, rudeness, inexpedience)
3
inopportune(adjective, characteristic, rudeness, inexpedience)
3
insolent(adjective, characteristic, bad, manner, behaviour)
3
loutish(adjective, characteristic, bad, manner, behaviour)
3
uncivil(adjective, characteristic, bad, manner, behaviour)
3
ungracious(adjective, characteristic, bad, manner, behaviour)
3
unmannerly(adjective, characteristic, bad, manner, behaviour)
3
unwise(adjective, characteristic, rudeness, inexpedience)
1
abrupt(adjective, characteristic, manner, illiteracy)
1
abusive(adjective, characteristic, manner, illiteracy)
1
bad-mannered(adjective, bad, manner, behaviour)
1
barbarian(adjective, characteristic, manner, illiteracy)
1
barbaric(adjective, characteristic, manner, illiteracy)
1
barbarous(adjective, characteristic, manner, illiteracy)
1
blunt(adjective, characteristic, manner, illiteracy)
1
brusque(adjective, characteristic, manner, illiteracy)
1
brutish(adjective, characteristic, manner, illiteracy)
1
cheeky(adjective, characteristic, manner, illiteracy)
1
coarse(adjective, characteristic, manner, illiteracy)
1
crabbed(adjective, characteristic, manner, illiteracy)
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APASmart Define. (2015). opportunistic thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/opportunistic/thesaurus/antonyms
ChicagoSmart Define. 2015. "opportunistic thesaurus" https://smartdefine.org/opportunistic/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2015, opportunistic thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/opportunistic/thesaurus/antonyms>.
MLASmart Define. "opportunistic thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/opportunistic/thesaurus/antonyms>