Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
他当众打断长辈讲话,虽然并非有意冒犯,却显得十分失礼。Tā dāngzhòng dǎduàn zhǎngbèi jiǎnghuà, suīrán bìngfēi yǒuyì màofàn, què xiǎnde shífēn shīlǐ.He interrupted an elder in public; although he did not mean to offend, it seemed very impolite.
招待不周,请多包涵,实在失礼了。Zhāodài bù zhōu, qǐng duō bāohán, shízài shīlǐ le.The hospitality was lacking, please forgive me; it was truly discourteous of me.
提前离开宴会显得有点儿失礼,但他说家里有急事。Tíqián líkāi yànhuì xiǎnde yǒudiǎnr shīlǐ, dàn tā shuō jiā lǐ yǒu jíshì.Leaving the banquet early seemed a bit impolite, but he said there was an urgent matter at home.