Synonyms|527Antonyms|88|Broader|4Narrower|0Related|667

77 entries under unlikely topic. ×

2
debatable(adjective, uncertain, doubtful, shaky, unsure)
2
doubtable(shaky, unpromising)
2
iffy(adjective, uncertain, doubtful, shaky, likely)
2
problematic(adjective, uncertain, unreasonable, doubtful, shaky)
2
shady(uncertain, doubtful, shaky, unsure)
2
shaky(adjective, likely, unpromising)
2
unworkable(adjective, wild, silly, unreasonable, useless)
1
chancy(uncertain, doubtful, shaky, unsure)
1
far out(verb, expression, phrasal verb, unreasonable, dubious)
1
hundred-to-one(adjective, doubtful, likely, implausible)
1
inconclusive(adjective, open, obscure, poor, thin)
1
not expected(expression, adjective, doubtful, likely)
1
obscure(unreasonable, shaky, dubious, flimsy)
1
open(uncertain, doubtful, shaky, unsure)
1
outside chance(expression, adjective, doubtful, dubious, likely)
1
poor(adjective, slight, flat, thin, false)
1
puzzling(adjective, unreasonable, dubious, flimsy)
1
slim and none(expression, adjective, idiom, doubtful, likely)
1
small(adjective, slight, poor, thin, inadequate)
1
unclear(uncertain, doubtful, shaky, unsure)
For more, visit Improbable on Power Thesaurus
11 years ago|10k views|share |citing 
APASmart Define. (2015). improbable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/improbable/thesaurus/synonyms
ChicagoSmart Define. 2015. "improbable thesaurus" https://smartdefine.org/improbable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, improbable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/improbable/thesaurus/synonyms>.
MLASmart Define. "improbable thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/improbable/thesaurus/synonyms>