Antonyms of adj solvable

1 sense of solvable

Sense 1
solvable, resolvable -- (capable of being solved; "such problems are perfectly solvable")

INDIRECT (VIA soluble) -> insoluble -- (admitting of no solution or explanation; "an insoluble doubt")

Similarity of adj solvable

1 sense of solvable

Sense 1
solvable, resolvable -- (capable of being solved; "such problems are perfectly solvable")
       => soluble (vs. insoluble) -- (susceptible of solution or of being solved or explained; "the puzzle is soluble")