When combined, 没 (méi) + 礼貌 (lǐmào) literally translates to “lacking the appearance of courtesy.” It signifies a clear absence of the expected polite behavior in a given social situation.
In Chinese culture, politeness—礼貌 (lǐmào)—is not just a pleasantry; it's a fundamental expression of respect and a key mechanism for maintaining social harmony (`和谐, héxié`). The concept is deeply rooted in Confucian philosophy, which emphasizes a structured society where everyone understands their role and acts accordingly. Accusing someone of being 没礼貌 (méi lǐmào) is therefore a heavier critique than simply calling someone “rude” in many Western contexts.
没礼貌 is a very common term used in daily life. Its connotation is always negative and it's a direct form of criticism.