21 entries under incomprehensible topic. ×

18
indefinite(adjective, rough, uncertainty, uncertain, doubtful)
17
indistinct(adjective, obscure, rough, uncertainty, uncertain)
17
vague(adjective, weak, dark, uncertainty, uncertain)
14
indeterminate(adjective, weak, uncertainty, uncertain, doubtful)
11
obscure(adjective, rough, uncertain, doubtful, dim)
10
unclear(adjective, weak, obscure, rough, dark)
9
ambiguous(adjective, weak, dark, uncertainty, uncertain)
8
boundless(adjective, immense, infinite, unlimited)
8
dim(adjective, weak, obscure, dark, doubtful)
2
bottomless(adjective, immense, infinite, boundless, unlimited)
2
countless(adjective, immense, infinite, boundless, unlimited)
2
doubtful(adjective, weak, dark, uncertain, dim)
2
innumerable(adjective, vague, unknown, general, ambiguous)
1
numberless(adjective, immense, infinite, boundless, unlimited)
1
unfathomable(adjective, doubtful, vague, unclear, ambiguous)
0
never-ending(adjective, immense, infinite, boundless, unlimited)
0
no end of(expression, immense, infinite, boundless, unlimited)
0
no end to(expression, immense, infinite, boundless, unlimited)
0
no strings(expression, immense, infinite, boundless, unlimited)
0
uncalculable(adjective, immense, infinite, boundless, unlimited)
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APASmart Define. (2015). undefined thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/undefined/thesaurus/synonyms
ChicagoSmart Define. 2015. "undefined thesaurus" https://smartdefine.org/undefined/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, undefined thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/undefined/thesaurus/synonyms>.
MLASmart Define. "undefined thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/undefined/thesaurus/synonyms>