Synonyms|159Antonyms|75|Broader|0Narrower|0Related|92
3
inenarrable
3
inexplicable
3
nameless(adjective, unspeakable)
3
shapeless
3
unnameable
2
abominable(adjective, unspeakable)
2
atrocious(adjective, unspeakable)
2
dreadful(adjective, unspeakable)
2
beyond description(adjective, idiom)
2
description(adjective, unspeakable, undescribable)
2
imprecise
2
inconceivable(adjective, unspeakable)
2
indeterminable
2
inexact
2
intangible(adjective, vague, mysterious, subtle, ambiguous)
2
mysterious
2
mystic
2
mystical
2
nebulous
2
nondescript
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APASmart Define. (2015). indefinable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/indefinable/thesaurus/synonyms
ChicagoSmart Define. 2015. "indefinable thesaurus" https://smartdefine.org/indefinable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, indefinable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/indefinable/thesaurus/synonyms>.
MLASmart Define. "indefinable thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/indefinable/thesaurus/synonyms>