overconfidence
自信過剰
解説 Definition
自分の能力や判断に対して過度に自信を持つこと。根拠なく楽観的になる傾向。
Overconfidence is too much confidence in yourself or in your abilities. It is often used when someone believes they will succeed or be right without enough care, skill, or evidence. The word usually suggests a negative result, such as mistakes or poor decisions.
覚え方のコツ Memory Tip
まず confidence は「自信」。そこに over が付くと、英語でよくある「行きすぎ」の感覚が加わり、「自信そのもの」ではなく「自信が過剰な状態」になると押さえると覚えやすいです。confidence は普通は前向きな語ですが、overconfidence は失敗の原因として語られやすいのが違い。be full of confidence は褒め言葉でも、overconfidence leads to mistakes のように使うと警戒の響きになります。
Break it into over + confidence. Confidence is usually positive, but over- often means too much, so the feeling becomes negative. A strong memory sentence is "Overconfidence leads to mistakes."
例文
His overconfidence led him to underestimate the difficulty of the exam.
彼の自信過剰は試験の難しさを過小評価することにつながった。
Overconfidence in financial markets can result in risky investment decisions.
金融市場における自信過剰はリスクの高い投資判断をもたらしうる。
The team's overconfidence after their winning streak made them careless in the final match.
連勝後のチームの自信過剰が、決勝戦での油断を招いた。
overconfidence の類義語・関連語
overconfidence の語源・成り立ち Etymology
overconfidence は over「過度に」と confidence「信頼」の複合語です。confidence はラテン語 confidere 由来で、con-「すっかり」+ fidere「信じる」と分けられます。confide と並べると、「信じすぎ」が自信過剰になる語だと分かります。
Overconfidence is a compound of over and confidence. Confidence comes from Latin confidere, from con- "fully" and fidere "to trust" or "to believe," which is also seen in confide. The word developed from the idea of strong trust into the sense of trusting yourself too much.
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