“+ adjective
Etymology: un- (I) + solved, past participle of solve
: not solved
many crimes remain unsolved
an unsolved x in all equations — Ralph Linton
unsolved problems
“+ adjective
Etymology: un- (I) + solved, past participle of solve
: not solved
many crimes remain unsolved
an unsolved x in all equations — Ralph Linton
unsolved problems
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012