輕於鴻毛 [轻于鸿－]

Jyutping hing1 jyu1 hung4 mou4
Pinyin qīng yú hóng máo

Definitions (CC-CEDICT)
  1. light as a goose feather (idiom); trifling
  2. unimportant
Definitions (Wiktionary)
  1. phrase, derogatory, figuratively, idiomatic
    to be worthless (or trashy, valueless, not worth a brass farthing, good for nothing, of no worth)
    (syn.) 無足輕重, 不值一提, 微不足道, 无足轻重, 无关紧要, 不足掛齒, 不值一文, 不足挂齿, 無關緊要