27 entries under adjective topic. ×

5
dark
4
inscrutable(clear, blank, hidden)
4
unfathomable(hard, difficult, bottomless)
4
unintelligible
3
incomprehensible
3
impenetrable
3
mysterious
2
incomplete
2
obscure
1
exclusive
1
inarticulate
1
recondite
1
unaccountable(explicable, explainable)
1
unclear
0
difficult
0
doubtful
0
hard
0
illegible
0
illogic
0
illogical
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APASmart Define. (2016). comprehensible thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/comprehensible/thesaurus/antonyms
ChicagoSmart Define. 2016. "comprehensible thesaurus" https://smartdefine.org/comprehensible/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, comprehensible thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/comprehensible/thesaurus/antonyms>.
MLASmart Define. "comprehensible thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/comprehensible/thesaurus/antonyms>