英英辞典 - English Dictionary | CUERBO - クエルボ英語辞書

optimism

noun

  1. a general disposition to expect the best in all things

    あらゆる点で最高を予想する一般的な性質

  2. the optimistic feeling that all is going to turn out well

    すべてがうまくいくという楽天的な気持ち

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