अपायकारक ingilizce:

She thinks television has a pernicious influence on our children

pernicious = deadly or destructive

An example of pernicious is the devastating effects of intense drug use.

Smokiing is pernicious

Because she hates me, my neighbor is always spreading pernicious lies about me

I did what I could, but her mother's influence was pernicious. 2. There is a pernicious culture of excellence: everything has to be not merely good but the best.