overconfident
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っている状態。慢心した。
Overconfident means too sure that you will succeed or that you are better than you really are. It often suggests that a person does not see risks or their own weaknesses clearly. The word usually has a negative meaning.
覚え方のコツ Memory Tip
まず confident を「自信がある」として確実に押さえ、その前に over- が付くと「度を超えて」という感覚が加わると覚えるとよいです。overwork, overeat などと同じ over- です。つまり overconfident は「自信がある」を通り越して「自信ありすぎ」。肯定的な self-confident と違い、判断ミスや油断につながる少し危うい響きがあります。become overconfident, overconfident about one’s ability などの形で見ておくと、単なる confident との差が定着します。
Build it from `confident` plus `over-`, the same `over-` as in `overeat` or `overwork`. So the feeling is not just confidence, but too much confidence. Think of common phrases like `become overconfident` or `overconfident about his ability` to remember the negative tone.
例文
The overconfident driver ignored the warning signs and ended up stuck in the mud.
自信過剰なドライバーは警告標識を無視して、泥にはまってしまった。
Being overconfident in negotiations can lead to costly mistakes.
交渉で自信過剰になると、代償の大きなミスにつながる可能性がある。
The team became overconfident after their winning streak and underestimated their opponents.
チームは連勝の後に自信過剰になり、対戦相手を過小評価した。
overconfident の類義語・関連語
overconfident の語源・成り立ち Etymology
overconfident は over-「過度に」と confident「確信している」から成る語です。confident はラテン語 confidere「すっかり信じる」（con-「強く」+ fidere「信じる」）に由来し、「自分を信じすぎる」ので「自信過剰」となり、関連語に confidence, confide があります。
Overconfident is built from over-, meaning "too much," and confident. Confident comes through Latin from confidere, meaning "to trust fully," from con- "strongly, completely" and fidere "to trust." The sense developed from strong trust in oneself to too much trust in oneself. Related English words include confidence and confide.
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