(huài) bad (same as 壞|坏, informal abbr. of 不好, also pronounced [nao1]); dastard
(nāo) bad (informal abbr. of 不好, also pronounced [huai4]); dreadful; scoundrel; dastard; see 孬種|孬种[nao1 zhong3] coward
(nāozhǒng) coward; useless scoundrel