妨扰 is a formal, written verb meaning 'to disturb' or 'to bother', often implying an unwelcome interruption of someone’s peace, work, or rest. The character 妨 (fáng) means 'to hinder' or 'to impede', while 扰 (rǎo) means 'to disturb' or 'to trouble'; together, they reinforce each other to express a clear, slightly elevated sense of disruption. It is commonly used in official notices, polite requests, or literary contexts — for example, on signs asking people not to disturb others in quiet zones.

This word carries a tone of respect and restraint; it’s rarely used in casual speech among friends, where simpler terms like 打扰 (dǎ rǎo) or 影响 (yǐng xiǎng) are preferred. 妨扰 emphasizes the negative impact of an action on another person’s state or activity, and it frequently appears in passive or prohibitive constructions (e.g., '请勿妨扰'). Its formality makes it unsuitable for informal chats but appropriate in workplace communications, hospital signage, or academic settings.