不誠実
解説 Definition
誠実さの欠如。本心からでない態度や発言で、不正直さや偽りを示すこと。信頼を失わせる行為や言動を表す。
Insincerity is a lack of honesty in feelings, words, or actions. It is used when someone does not truly mean what they say or pretends to feel something. The word often suggests falseness in social or emotional situations.
覚え方のコツ Memory Tip
まず base は sincere「誠実な」。そこに否定の in- が付いて insincere「不誠実な」、さらに -ity で性質・状態を表す名詞になり、insincerity は「不誠実さ」とまとまります。sincere / insincere / sincerity / insincerity を4語セットで覚えると定着しやすいです。an apology full of insincerity のように、謝罪や態度に『本気でなさ』『白々しさ』を感じる場面で出やすい語。単なる rudeness ではなく、『心がこもっていない』点が核心です。
Build it step by step: `sincere` becomes `insincere`, and then `-ity` turns it into a noun. That makes `insincerity` easy to remember as the state or quality of being not sincere. Learn it as a set with `sincere`, `insincere`, `sincerity`, and `insincerity`. It often fits with apologies, smiles, or polite words that do not feel genuine.
例文
His insincerity was evident when he apologized without looking her in the eyes.
彼が目を合わせずに謝罪したことから、彼の不誠実さが明らかだった。
She detected insincerity in his flattering remarks.
彼女は彼のお世辞の中に不誠実さを感じ取った。
The politician's speech was filled with insincerity and empty promises.
その政治家の演説は不誠実さと空約束で満ちていた。
insincerity の類義語・関連語
対義語
派生語
insincerity の語源・成り立ち Etymology
in- はラテン語系の否定接頭辞、sincere はラテン語 sincerus「清い・混じりけのない」、-ity は名詞化語尾です。sincerity や sincere と同根で、「本心が混じりけなく純粋ではない状態」から不誠実の意味になります。
Insincerity is formed from the negative prefix in-, sincere, and the noun ending -ity. Sincere comes from Latin sincerus, meaning "clean," "pure," or "unmixed." So insincerity developed from the idea of not being pure or genuine in feeling, and it is closely related to sincere and sincerity.
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