expression, i-adjective
have no choice but to ...; can do nothing but ...
Expresses that there is no alternative; often used with a verb in dictionary form or negative form. Similar to ほかない.
See also: ほかない
もう電車がないから、タクシーで帰るほかはない。
There are no more trains, so I have no choice but to go home by taxi.
彼を信じるほかはない。
I can do nothing but trust him.