| 单词 | indefatigable |
| 释义 | indefatigable adj. (of a person, quality, etc.) that cannot be tired out; unwearying, unremitting. Derivatives indefatigability n. indefatigably adv. Etymology: obs. F ind{eacute}fatigable or L indefatigabilis (as IN-(1), defatigare wear out) |
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