塵芥

尘芥
chénjiè
  1. (literary, figurative) trivialities; something insignificant
  2. trivialities; something insignificant

Wiktionary

Entry Composition

1 塵 chén
  1. dust
  2. dirt
  3. earth
=2 芥 gài see 芥藍 gàilán
=2 芥 jiè mustard