evil

Moral badness; wickedness; malevolence; the forces or behaviors that are the opposite or enemy of good.

“Evil lacks spirituality, hence its need for mind control.”

Something which impairs the happiness of a being or deprives a being of any good; something which causes suffering of any kind to sentient beings; harm; injury; mischief.

A malady or disease; especially in the phrase king's evil (scrofula).

Intending to harm; malevolent.

“an evil plot to brainwash and even kill innocent people”

Morally corrupt.

“Do you think that companies that engage in animal testing are evil?”

Unpleasant, foul (of odour, taste, mood, weather, etc.).

Producing or threatening sorrow, distress, injury, or calamity; unpropitious; calamitous.

Having harmful qualities; not good; worthless or deleterious.

“an evil beast; an evil plant; an evil crop”

Undesirable; harmful; bad practice

“Global variables are evil; storing processing context in object member variables allows those objects to be reused in a much more flexible way.”

Wickedly, evilly, iniquitously

Injuriously, harmfully; in a damaging way.

Badly, poorly; in an insufficient way.