not bother about small matters; not be punctilious; not niggling; not stick at trifles
? 他一向～。He’s never bothered about small matters.
不拘小節(jié)
not concerned with trivial points;not be punctilious;disregard trifles or niceties
不拘小節(jié)bù jū xiǎo jié
不拘于細(xì)小的行為。let one’s hair down, not bother about small matters, not be punctilious