不遺餘力 bù yí yú lì

to spare no pains or effort (idiom); to do one's utmost

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. to spare no pains or effort (idiom); to do one's utmost

Characters

Character Meaning
不 bù HSK 1
not; no; (negative prefix)
遺 yí
to leave behind; to lose; to omit
餘 yú
remaining; surplus; extra
力 lì HSK 3
strength; force; power