70 entries under doubtful topic. ×

77
unclear(adjective, characteristic, dull, clear, open)
57
indefinite(adjective, clear, open, disorder, soft)
51
obscure(adjective, dull, clear, weak, obscure)
48
indistinct(adjective, dull, clear, weak, soft)
43
hazy(adjective, dull, clear, weak, soft)
40
ambiguous(adjective, clear, open, rough, certain)
36
dim(adjective, dull, clear, weak, soft)
36
uncertain(adjective, clear, open, obscure, rough)
29
indeterminate(adjective, dull, clear, character, obscure)
20
equivocal(adjective, clear, open, obscure, rough)
18
dark(adjective, clear, obscure, rough, gloomy)
16
undefined(adjective, weak, dark, uncertainty, uncertain)
15
unsettled(adjective, clear, open, rough, certain)
14
murky(adjective, dull, obscure, dark, gloomy)
14
opaque(adjective, dull, hard, obscure, difficult)
14
undecided(adjective, open, certain, uncertain, nervous)
14
undetermined(adjective, clear, open, rough, certain)
13
questionable(adjective, clear, rough, uncertain, anxious)
13
unintelligible(adjective, clear, obscure, rough, difficult)
11
dubious(adjective, clear, open, rough, uncertain)
10 years ago|37k views|share |citing 
APASmart Define. (2016). vague thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/vague/thesaurus/synonyms
ChicagoSmart Define. 2016. "vague thesaurus" https://smartdefine.org/vague/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, vague thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/vague/thesaurus/synonyms>.
MLASmart Define. "vague thesaurus" 29 February 2016. Web. 24 September 2026. <https://smartdefine.org/vague/thesaurus/synonyms>