启齿 qǐchǐ to open one's mouth Origin Definitions Defs Strokes Stroke Words Sentences Sents 难以启齿 nányǐqǐchǐ to find it hard to speak about something to be too embarrassed or ashamed to mention something; to find it hard to speak one's mind羞于启齿 xiūyúqǐchǐ too shy to speak out to be too embarrassed or shy to speak one's mind; too ashamed to open one's mouth