Synonyms|332Antonyms|135|Broader|10Narrower|14Related|601
8
incomprehensible(adjective, understandable)
7
unrelatable
4
opaque(adjective, hard)
3
obscure
3
inexplicable
3
unpardonable(adjective, unforgivable)
2
unintelligible(adjective, understandable)
2
esoteric
2
fuzzy
2
inscrutable
2
mysterious
2
unfathomable
1
abstruse
1
ambiguous(adjective, clear, obscure, plain)
1
arcane
1
cryptic
1
enigmatic
1
illegible(adjective, unreadable)
1
impenetrable(adjective, incomprehensible)
1
inarticulate
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APASmart Define. (2016). understandable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/understandable/thesaurus/antonyms
ChicagoSmart Define. 2016. "understandable thesaurus" https://smartdefine.org/understandable/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2016, understandable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/understandable/thesaurus/antonyms>.
MLASmart Define. "understandable thesaurus" 31 March 2016. Web. 20 September 2026. <https://smartdefine.org/understandable/thesaurus/antonyms>