The difference between Evil and Wicked

When used as nouns, evil means moral badness, whereas wicked means people who are wicked.

When used as adjectives, evil means intending to harm, whereas wicked means evil or mischievous by nature.

Wicked is also adverb with the meaning: very, extremely.

check bellow for the other definitions of Evil and Wicked

Evil as an adjective:

Intending to harm; malevolent.

Examples:

"an evil plot to kill innocent people"
Evil as an adjective:

Morally corrupt.

Examples:

"Do you think that companies that engage in animal testing are evil?"
Evil as an adjective:

Unpleasant, foul (of odour, taste, mood, weather, etc.).
Evil as an adjective:

Producing or threatening sorrow, distress, injury, or calamity; unpropitious; calamitous.
Evil as an adjective (obsolete):

Having harmful qualities; not good; worthless or deleterious.

Examples:

"an evil beast; an evil plant; an evil crop"
Evil as an adjective (computing, programming, slang):

undesirable; harmful; bad practice

Examples:

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

Evil as a noun:

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

Examples:

"The evils of society include murder and theft."

"'Evil lacks spirituality, hence its need for mind control."
Evil as a noun:

Anything which impairs the happiness of a being or deprives a being of any good; anything which causes suffering of any kind to sentient beings; injury; mischief; harm.
Evil as a noun (obsolete):

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

Wicked as an adjective:

Evil or mischievous by nature.
Wicked as an adjective (slang):

Excellent; awesome; masterful

Examples:

"That was a wicked guitar solo, bro!"
Wicked as an adjective (UK, dialect, obsolete):

Active; brisk.

Wicked as an adverb (slang, New England, British):

Very, extremely.

Examples:

"The band we went to see the other night was wicked loud!"

Wicked as an adjective:

Having a wick.

Examples:

"a two-wicked lamp"
Wicked as an adjective (British, dialect, chiefly, Yorkshire):

Infested with maggots.