Pernicious [adjective]

Perhaps it is in this last that it becomes our most pernicious enemy.

He said this was to discourage that pernicious class of men, the inventors.

Pride is excellent; but even pride may sometimes be pernicious.

But forego, if possible, your pernicious stimulant of laudanum.

All books which meddle with the faith are condemnable and pernicious.

Existing marriage is a pernicious survival of the patriarchal age.

But human society has guided them into false and pernicious ways.

Of course it was all wrong, a pernicious system and all that, but they did do it.

He was quite sure that the question was not asked in reference to the pernicious man.

She had said that she was to dance, not with that pernicious Captain, but with a foreign Count.