indefatigable

• adj.疲れを知らない；不屈の；忍耐強い

in-, not, non, de-, emphatic, fatigue, tired.

indefatigable

indefatigable: see fatigue

indefatigable (adj.)

1580s (implied in indefatigably), from French indefatigable (15c.), from Latin indefatigabilis "that cannot be wearied," from in- "not" (see in- (1)) + defatigare "to tire out," from de- "utterly, down, away" + fatigare "to weary" (see fatigue). Blount (1656) has defatigable, which was in use in 17c. Modern use (1948) probably is a jocular back-formation from indefatigable.

1. He was indefatigable in his efforts to secure funding for new projects.

彼は疲れを知らずに新しいプロジェクトのために資金を求めて努力した。

2.an indefatigable defender of human rights

不屈の人権擁護者

3.His indefatigable spirit helped him to cope with his illness.

彼の不屈の精神は病気に立ち向かうのを助けた。

4.He was indefatigable in his lectures on the aesthetics of love.

愛に関する美学を講義している間、彼は疲れを知らなかった。

5.The indefatigable Walters was in his element.

エネルギッシュなウォルターズはまさにその通りだ。