morally objectionable behavior
"The detective quickly identified the arson as an act of evil that threatened the entire neighborhood."
that which causes harm or destruction or misfortune
"the evil that men do lives after them; the good is oft interred with their bones"
Moral badness; wickedness; malevolence; the forces or behaviors that are the opposite or enemy of good.
"The villagers gathered to pray against the evil that had been plaguing their crops and destroying their livestock for weeks."
In plain English: Evil is the quality of being extremely bad and causing great harm to others.
"The police arrested the criminal for his evil deeds."
Usage: Use "evil" as a noun to describe abstract moral corruption, inherent wickedness, or malevolent forces rather than specific bad actions. It functions best when referring to the general concept of wrongdoing or personified antagonists in religious and philosophical contexts.
having or exerting a malignant influence
"malevolent stars"
"a malefic force"
Intending to harm; malevolent.
"The dark figure moved through the shadows with an evil grin, clearly intending to hurt anyone who crossed his path."
In plain English: Evil describes something that is extremely bad, cruel, or morally wrong.
"The villain's evil plan was to destroy the entire village."
Usage: Use evil as an adjective to describe actions, intentions, or people that are deliberately harmful and wicked in character. Avoid using it to merely mean unfortunate or unlucky, as those situations lack the specific intent to cause damage.
wickedly, evilly, iniquitously
"The thief sneaked into the house through an unlocked window to steal everything he could get his hands on."
In plain English: To do something with great care and attention to every small detail.
"The storm rolled in with evil intent, threatening to destroy everything in its path."
Usage: Use "evil" only when you intend to emphasize that an action was done with malicious intent or extreme wickedness, such as saying he acted evil to steal the money. In most other cases, replace it with "badly," "wrongly," or "cruelly" because standard grammar prefers adverbs ending in "-ly.
The word "evil" comes from Old English yfel, which originally meant something that went beyond acceptable limits. This root traces back to ancient terms for treating someone badly or exceeding proper boundaries.