よりほかない (yori hoka nai): Having no choice but to
～よりほかない (yori hoka nai)
Meaning
Have no choice but to
Formation and usage
Dictionary-form verb + よりほかない/よりほかはない, meaning no alternative remains.
Explanation
State that no alternative remains except the action mentioned. It often expresses reluctant acceptance of circumstances. It does not mean should not do something.
Examples
終電が終わったので、タクシーで帰るよりほかありません。
The last train has gone, so I have no choice but to take a taxi home.
返事が来るまで、待つよりほかないです。
Until a reply comes, there is nothing to do but wait.
データが消えてしまったので、最初から作り直すよりほかありません。
The data is gone, so we have no choice but to recreate it from scratch.
道が通れないので、引き返すよりほかありません。
The road is impassable, so we have no choice but to turn back.
間違いに気づいた以上、正直に説明するよりほかありません。
Now that I have noticed the mistake, I have no choice but to explain honestly.
How related patterns differ
に限る can recommend the best option or state a restriction. せいぜい marks an estimated upper limit. べき concerns what should be done, よりほかない means no alternative remains, and わけにはいかない concerns duties or principles.