径自

徑自
jìngzì
  1. without leave
  2. without consulting anyone

CEDICT

on one's own; without consulting anyone

Wiktionary

直接行动。如：「他话也不说，径自转头就走。」也作「迳自」。

重編國語辭典

Entry Composition

1 径 jìng
  1. footpath
  2. track
  3. diameter
  4. straight
  5. directly
2 自 zì
  1. (bound form) self; oneself
  2. from; since
  3. naturally; as a matter of course