やむを得えず

や

む

を

え

ず

JLPTN2Freq.FrequencyTop 50,000

Meanings

1

Used when something must be done because there is no other choice, often with a nuance of reluctance or resignation.

え

ず

会かい

議ぎ

を

延えん

期き

し

た

。

We had no choice but to postpone the meeting.

彼かれはやむを得えずその条じょう件けんを受うけ入いれた。

He reluctantly accepted the conditions.

仕し方かたなく
やむを得ず is more formal and stresses that no alternative existed, while 仕方なく is the everyday, casual way to say one had no choice.
余よ儀ぎなく
やむを得ず and 余儀なく both mean 'unavoidably', but 余儀なく (usually as 余儀なくされる) is more literary and typically appears in written, formal accounts.

自みずからN2
やむを得ず describes acting without choice under pressure, while 自ら describes acting voluntarily and of one's own will.

From the classical expression やむを得ず (yamu o ezu), literally 'cannot stop', meaning something cannot be helped or avoided.