a.
- 不疲勞的；精神抖擻的With unwearied diligence, his eyes pursued the object till it gradually disappeared.
他的眼光毫無鬆懈地追蹤著這個物體，直到它逐漸消失。
- 不倦的；不屈不撓的We must admit that your unwearied efforts were in some measure successful.
我們必須承認你們不屈不撓的努力多少是成功的。
辨析
同義參見:
constant