Used as an adverb to express that something is more or less than expected for the situation, often with a nuance of mild surprise. Common in everyday speech.
The lunch at this restaurant is comparatively cheap.
今日
は
割
に
暖
かい
ね
。
It's fairly warm today, isn't it?
2
expression
considering ...; for ...; despite ...
Used in the pattern ~の割に(は) or ~割に(は) to mean 'considering' or 'for', often implying the result is unexpected given the circumstances. The は is optional and adds contrast.