under the weather
体調が悪い
解説 Definition
体調がすぐれない、気分が悪いこと。軽い病気や不調を表すカジュアルな表現。
If someone is under the weather, they feel slightly sick or not as healthy as usual. This is an informal expression, usually used for a mild illness or tired feeling, not for something very serious.
覚え方のコツ Memory Tip
under は「下に」、weather は「天気・空模様」。直訳で意味を取るより、「悪天気の下にいて調子が出ない」という一枚絵で覚えると残りやすい表現です。重い病気ではなく、風邪気味・だるい・少し気分が悪い、のような軽めの不調をやわらかく言うのがポイント。会話では I'm a bit under the weather today. が定番で、sick や ill より婉曲的で日常会話向きです。
Make a picture in your mind: you are under bad weather, so you do not feel your best. This idiom usually suggests a mild problem, like feeling tired, weak, or slightly sick. It sounds softer and more conversational than `ill` or `sick`.
例文
I'm feeling a bit under the weather today, so I'll stay home.
今日は少し体調が悪いので、家にいます。
She looked under the weather, so I suggested she take the day off.
彼女は体調が悪そうだったので、休んだらどうかと勧めた。
He's been under the weather all week with a bad cold.
彼はひどい風邪でずっと体調が悪い。
under the weather の語源・成り立ち Etymology
under も weather も古英語由来で、weather は「風雨・荒天」の響きが強い語です。船で具合の悪い人を風雨の当たる甲板より下へ移したことから under the weather は「体調が悪い」となり、weatherproof や underground にも核の意味が残ります。
Both under and weather come from Old English, and weather once strongly suggested wind and rough conditions. The idiom is often linked to life at sea, where a sick sailor might stay below deck, under the bad weather. From that image, under the weather came to mean feeling unwell.
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