6
incongruous(adjective, out, consistent, absurd, unsuitable)
5
unsuitable
4
unrelatable
3
clashing
3
conflicting
3
not good
3
unfitting(adjective, unsuitable)
2
disagreeing(verb, adjective, unsuitable, coterminous, undifferentiated)
2
discrepant
2
improper
2
inapposite
2
inappropriate
2
inapt
2
incompatible
2
inconsistent
2
inharmonious
2
unharmonious(adjective, unsuitable, congruent)
1
adverse
1
antagonistic
1
asymmetrical
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APASmart Define. (2016). congruous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/congruous/thesaurus/antonyms
ChicagoSmart Define. 2016. "congruous thesaurus" https://smartdefine.org/congruous/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, congruous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/congruous/thesaurus/antonyms>.
MLASmart Define. "congruous thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/congruous/thesaurus/antonyms>