Intermediate (B1)
IPA: //ʌnˈsɒlvəbl//
KK: /ʌnˈsɑːvəl/
Definition
This word describes something that cannot be solved or resolved.
Example
The math problem was so complex that it seemed unsolvable.
Conversation

I was trying to solve that puzzle you gave me, but it feels completely unsolvable.

Really? I thought it was challenging but doable.

I guess I just can't wrap my head around it; it seems like one of those unsolvable problems.

Sometimes you just need to step back and take a break from it.
Synonyms & Antonyms
Synonyms
intractable
hopeless
impossible
Antonyms
solvable
resolvable
manageable
Root Explanation
Unsolvable → It is formed from "un-" (meaning not) and "solvable" (from Latin "solvere", meaning to loosen or solve). The word "unsolvable" means not able to be solved or loosened.
Memory Tip
Think of 'not' ('un-') being applied to something that can be 'solved' ('solvere'). This helps you remember that 'unsolvable' refers to something that cannot be solved.
Visually Confused Words
unresolvable
unabsolvable
unsalvable
unisolable
insolvable
solvable
undissolvable
unspoilable