Synonyms|56Antonyms|1|Broader|0Narrower|0Related|9

39 entries under dubious topic. ×

1
unbelievable(adjective, unreasonable, doubtful, unlikely)
1
unconvincing(adjective, unreasonable, doubtful, unlikely)
1
unimaginable(doubtful, unlikely, implausible, improbable)
1
unsubstantial(adjective, unreasonable, doubtful, unlikely)
1
weak(adjective, unreasonable, doubtful, unlikely)
0
absurd(doubtful, improbable)
0
contrary(doubtful, improbable)
0
faint(doubtful, improbable)
0
not probable(expression, adjective, doubtful, unlikely)
0
out of the ordinary(expression, idiom, doubtful, improbable)
0
outside chance(expression, adjective, doubtful, unlikely)
0
reachy(unreasonable, unlikely, flimsy, unbelievable)
0
remote(doubtful, improbable)
0
slight(doubtful, improbable)
0
strange(doubtful, improbable)
0
unheard-of(doubtful, improbable)
0
unlikely(adjective, doubtful, unbelievable, implausible)
0
unreasonable(adjective, unlikely, flimsy, unbelievable)
0
untoward(doubtful, improbable)
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APASmart Define. (2015). not likely thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/not_likely/thesaurus/synonyms
ChicagoSmart Define. 2015. "not likely thesaurus" https://smartdefine.org/not_likely/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, not likely thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/not_likely/thesaurus/synonyms>.
MLASmart Define. "not likely thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/not_likely/thesaurus/synonyms>