Dreye權威釋義|indefatigable

a.

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indefatigably

n.

indefatigability

同義參見:

以上來源於：《英漢大辭典》

/ˌɪndɪˈfatɪgəb(ə)l/

adj.

persisting tirelessly; unflagging.

C17: from Fr., or from L. indefatigabilis, from in- ‘not’ + de- ‘away, completely’ + fatigare ‘wear out’.

以上來源於：《簡明牛津英語詞典》