亲密无间 Traditional 親密無間 qīn mì wú jiàn 🔊 to have a very close relationship with… + Keep this word Meanings qīn mì wú jiàn 親密無間 (idiom) to have a very close relationship with each other Its characters 亲qīnparentHSK 5密mìdense; close; thickHSK 6无wúnot to haveHSK 4间jiānbetweenHSK 2