insoluble vs insolvable

insoluble and insolvable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
insoluble	No	Yes	No	No
insolvable	No	Yes	No	No

insoluble (adjective)	insolvable (adjective)
(of a substance) incapable of being dissolved	not easily solved
admitting of no solution or explanation
without hope of solution