比較級：more tireless 最高級：most tireless
...fadeless; rainless; nameless; countless; wireless; treeless; waterless; airless; moneyless; tireless; voiceless; sleepless; workless;
... he is sick and tired of all the arguments . tireless she was tireless in her efforts on our behalf . ...
... ｔｈｒａｓｈ ｔｈｒａｓｏｎｉｃａｌ ｔｉｒｅｌｅｓｓ ｔｉｒｏ ｔｉｒｅｗｏｍａｎ ｔｏｒａ ...