Synonyms|62Antonyms|24|Broader|0Narrower|0Related|184
11
insoluble
4
unsolvable
1
impossible
1
insuperable
0
hopeless
0
indissoluble
0
insolvable
0
unresolvable
0
unsoluble
0
absurd
0
difficult
0
fantastic
0
inexplicable
0
knotty
0
non-water-soluble
0
outlandish
0
preposterous
0
unattainable
0
undoable
0
unexplainable
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APASmart Define. (2015). soluble thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/soluble/thesaurus/antonyms
ChicagoSmart Define. 2015. "soluble thesaurus" https://smartdefine.org/soluble/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2015, soluble thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/soluble/thesaurus/antonyms>.
MLASmart Define. "soluble thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/soluble/thesaurus/antonyms>