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無反応 (muhannou) Japanese meaning: unresponsive | Kotomora
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The patient was unresponsive to being called.
He showed no reaction to my joke, and I felt a bit lonely.
Usage patterns 〈 人ひと 〉 の 呼よ びかけに 無む 反はん 応のう だ to be unresponsive to someone's call or appeal
He showed no reaction to her calling out to him.
〈 事こと〉 〉 に 無反応むはんのう を 装おそ う to pretend to be unaffected by something
He pretended to show no reaction to the news.
〈 物もの 〉 が 無む 反はん 応のう になる for something (a device, patient, etc.) to stop responding
The patient became unresponsive to the medication.
Kanji 無 nothingness, none, ain't Related words 無視 means actively choosing to ignore something, while 無反応 simply describes an absence of reaction that may be unintentional.
無関心 describes a lack of interest or concern, whereas 無反応 describes a lack of observable reaction, which can occur even when someone is interested.
冷淡 emphasizes emotional coldness toward someone, while 無反応 simply notes that no response occurred, without implying coldness.
鈍感 describes a general insensitivity or slowness to notice things, while 無反応 describes the specific absence of a reaction to a particular stimulus.
Etymology Compound of 無 (mu, 'without') and 反応 (hannō, 'reaction'). The word follows a common pattern of forming adjectival nouns with 無-.
