关紧 guānjǐn shut Origin Definitions Defs Strokes Stroke Words Sentences Sents 无关紧要 wúguānjǐnyào insignificant of no importance or consequence; trivial; making no difference牙关紧闭症 yáguānjǐnbìzhèng lockjaw A medical condition, often associated with tetanus, characterized by a spasm of the jaw muscles that keeps the mouth tightly closed.