expression, i-adjective
don't understand; don't know
Colloquial contraction of わからない, used in casual speech. Carries the same range of meanings: not understanding, not knowing, or not being able to figure something out.
See also: 分かる
この問題、分かんない。
I don't get this problem.
彼がどこに行ったか分かんない。
I don't know where he went.
The standard negative form of 分かる. 分かんない is a colloquial contraction used in informal contexts.
Colloquial contraction of 分からない (wakaranai), where the /r/ is dropped and the vowel sequence is reduced.