pernicious
/pəˈnɪʃəs/adjective
- having a harmful effect, especially in a gradual or subtle way有害的, 恶劣的：
the pernicious influences of the mass media.
大众传媒的有害影响。
派生词
perniciously
adverbperniciousness
noun词源
late Middle English: from Latin perniciosus 'destructive', from pernicies 'ruin', based on nex, nec- 'death'.