Unsolvable is a related term of perplexing.
As adjectives the difference between unsolvable and perplexing
is that unsolvable is not solvable while perplexing is confusing or puzzling.
As a verb perplexing is
.
unsolvable
English
Adjective
(
en adjective)
Not solvable.
Provably not solvable.
Synonyms
* insolvable
* difficult
Antonyms
* solvable
* easy