dumb
要点物の言えない
意味
- 物の言えない,口をきくことができない
- 口をつぐんでいる,黙っている(silent)
- 《名詞的にthe~》口のきけない人々
- 《話》頭の悪い,ばかな
例文
Don't play dumb. Answer my question properly!
とぼけてないで、私の質問にちゃんと答えて！
Sho was 12 years old, prone to illness and a bit dumb.
正ちゃんは十二歳で、病身だけに、少し薄のろの方であった。
He remained dumb during this discussion.
この討論中彼は何も言わずに黙っていた。
語源
英語の原文（Wiktionary）
From Middle English dumb (“silent, speechless, mute, ineffectual”), from Old English dumb (“silent, speechless, mute, unable to speak”), from Proto-West Germanic *dumb, from Proto-Germanic *dumbaz (“dull, dumb”), from Proto-Indo-European *dʰewbʰ- (“to whisk, smoke, darken, obscure”). The senses of stupid, unintellectual, and pointless, which are found regularly since the 19th century only, probably developed under the influence of German dumm and Dutch dom. Just like the English word, these originally meant "lacking the power of speech", but they developed the mentioned senses early on.