expression, noun
sliver of hope; ray of hope; gleam of hope
A fixed expression meaning a very small, faint hope. Often used in literary or dramatic contexts.
彼は一縷の望みをかけて、最後の治療を試みた。
He tried the last treatment, clinging to a sliver of hope.
一縷の望みも残っていないように思えた。
It seemed there was not even a ray of hope left.