亲密无间 qīnmìwújiàn intimate Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 他们俩从小就在一起,关系亲密无间。 tāmen liǎ cóng xiǎo jiù zài yīqǐ, guānxi qīnmìwújiàn. The two of them have been together since childhood and are extremely close. Source: Dong Chinese Dictionary