99 entries under doubtful topic. ×

0
inconstant(vague, hesitant, unsure, wavering)
0
indistinct(vague, unsure)
0
irregular(vague, unsure)
0
on a hunch(expression, idiom, uncertain, speculative)
0
on a long shot(expression, idiom, uncertain, speculative)
0
on thin ice(expression, idiom, vague, unsure)
0
putative(uncertain, speculative)
0
reputed(uncertain, speculative)
0
suppositious(uncertain, speculative)
0
suppositive(uncertain, speculative)
0
surmised(uncertain, speculative)
0
surmising(uncertain, speculative)
0
suspect(uncertain, speculative)
0
touch and go(expression, idiom, vague, unsure)
0
unfixed(vague, unsure)
0
unforeseeable(vague, unsure)
-1
up for grabs(expression, idiom, vague, unsure)
-1
variable(vague, unsure)
-1
waiting(adjective, uncertain, shy, cautious)
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APASmart Define. (2015). tentative thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/tentative/thesaurus/synonyms
ChicagoSmart Define. 2015. "tentative thesaurus" https://smartdefine.org/tentative/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, tentative thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/tentative/thesaurus/synonyms>.
MLASmart Define. "tentative thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/tentative/thesaurus/synonyms>