indefatigable
意味
- 疲れない;飽きない
語源
英語の原文（Wiktionary）
From Middle French, from Latin indēfatīgābilis (“untiring”), from in- (“not”) + dēfatīgō (“to tire out”).
辞書順で近い単語
indecision indecisive indeed indefinite indefinitely indelible
From Middle French, from Latin indēfatīgābilis (“untiring”), from in- (“not”) + dēfatīgō (“to tire out”).
indecision indecisive indeed indefinite indefinitely indelible