adjective Producing or threatening sorrow, distress, injury, or calamity; unpropitious; calamitous.
adjective Having harmful qualities; not good; worthless or deleterious.
an evil beast; an evil plant; an evil crop
adjective 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.
noun Moral badness; wickedness; malevolence; the forces or behaviors that are the opposite or enemy of good.
The evils of society include murder and theft.
noun 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.