futile
- adj. 无用的；无效的；没有出息的；琐细的；不重要的
英英释意
- 1. producing no result or effect;
- "a futile effort"
- "the therapy was ineffectual"
- "an otiose undertaking"
- "an unavailing attempt"
- 2. unproductive of success;
- "a fruitless search"
- "futile years after her artistic peak"
- "a sleeveless errand"
- "a vain attempt"