expression, i-adjective
natural; understandable; no wonder
Used to express that a situation or reaction is only natural given the circumstances. Often translates to 'it's no wonder that...' or 'it's understandable that...'.
彼が怒るのも無理もない。
It's no wonder he's angry.
あんなに働いたら、疲れるのも無理もない。
After working that much, it's only natural to be tired.