Synonyms|607Antonyms|112|Broader|9Narrower|11Related|650

39 entries under idiom topic. ×

6
out of the question(expression, adjective, wild, stupid)
4
contrary to reason(expression, adjective, inaccessible, impossibility)
2
not likely(expression, unreasonable, dubious, unlikely)
2
not a prayer(noun, expression, adjective, wild)
1
not possible(expression, impossibility)
1
be impossible(expression, difficulty, impossibility)
1
chance in a million(noun, expression, unthinkable)
1
count me out
1
for the birds(expression, extraordinary, unreasonable, dubious)
1
full of holes(expression, extraordinary, unreasonable, dubious)
1
ghost of a chance(noun, expression, unthinkable)
1
include me out
1
not feasible(expression, adjective, difficulty, impractical)
1
open to doubt(expression, extraordinary, amazing, incredible)
1
totally unlikely(expression, adjective)
0
by no means
0
bay the moon(expression, inutility)
0
be difficult(expression, difficulty)
0
beat the air(expression, inutility)
0
beyond possibility
<12>
For more, visit Impossible on Power Thesaurus
10 years ago|14k views|share |citing 
APASmart Define. (2016). impossible thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impossible/thesaurus/synonyms
ChicagoSmart Define. 2016. "impossible thesaurus" https://smartdefine.org/impossible/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, impossible thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impossible/thesaurus/synonyms>.
MLASmart Define. "impossible thesaurus" 9 March 2016. Web. 22 September 2026. <https://smartdefine.org/impossible/thesaurus/synonyms>