安分

ānfèn
  1. content with one's lot
  2. knowing one's place

CEDICT

knowing one's place; not going beyond one's bounds; content with one's lot; law-abiding

Wiktionary

安守本分。《红楼梦．第六四回》：「嗳，那一个是安分的，每日不是打架，就拌嘴。」《老残游记．第七回》：「若是深知这人一定安分的，他就教他几手拳棒，也十分慎重的。」也作「安分守己」。

重編國語辭典

规矩老实，守本分。例：~人|~守己|这孩子不大~。

維基詞典

Entry Composition

1 安 ān
  1. (bound form) calm; peaceful
  2. to calm; to set at ease
  3. safe; secure; in good health
  4. content; satisfied (as in 安于 ānyú)
  5. to place (sb) in a suitable position (job)
  6. to install; to fix; to fit
  7. to bring (a charge against sb)
  8. to harbor (certain intentions)
  9. ampere (abbr. for 安培 ānpéi)
2 分 fèn
  1. part
  2. share
  3. ingredient
  4. component

Containing this entry

安分守己 ānfènshǒujǐ
  1. to be content with one's lot (idiom)
  2. to know one's place