ni2
shy; timid; bashful; to look ashamed

strokes 8
radical
strokes after radical 5
忸怩 忸怩 niu3 ni2
bashful; blushing

忸忸怩怩 忸忸怩怩 niu3 niu3 ni2 ni2
timid; bashful

颜厚有忸怩 顏厚有忸怩 yan2 hou4 you3 niu3 ni2
even the most brazen person will sometimes feel shame (idiom)