sadistic

As a noun schadenfreude

is malicious enjoyment derived from observing someone else's misfortune.

As an adjective sadistic is

delighting in or feeling pleasure from the pain of others.

As adjectives the difference between sadistic and undefined

is that sadistic is delighting in or feeling pleasure from the pain of others while undefined is lacking a definition or value.

As a noun spite

is ill will or hatred toward another, accompanied with the disposition to irritate, annoy, or thwart; a desire to vex or injure; petty malice; grudge; rancor.

As a verb spite

is to treat maliciously; to try to injure or thwart.

As a preposition spite

is notwithstanding; despite.

As an adjective sadistic is

delighting in or feeling pleasure from the pain of others.

As adjectives the difference between spiteful and sadistic

is that spiteful is filled with, or showing, spite; having a desire to vex, annoy, or injure; malignant; malicious while sadistic is delighting in or feeling pleasure from the pain of others.

As adjectives the difference between dominant and sadistic

is that dominant is ruling; governing; prevailing; controlling while sadistic is delighting in or feeling pleasure from the pain of others.

As a noun dominant

is (music) the fifth major tone of a musical scale (five major steps above the note in question); thus g is the dominant of c, a of d, and so on.

As adjectives the difference between acrimonious and sadistic

is that acrimonious is angry, acid, and sharp in delivering argumentative replies: bitter; mean-spirited; sharp in language or tone while sadistic is delighting in or feeling pleasure from the pain of others.

As an adjective sadistic

is delighting in or feeling pleasure from the pain of others.

As a proper noun satan is

(l), supreme evil spirit of abrahamic religions.

As adjectives the difference between sadistic and psycho

is that sadistic is delighting in or feeling pleasure from the pain of others while psycho is (colloquial|or|pejorative) psychotic, or otherwise insane.

As a noun psycho is

(pejorative|slang) a person who is psychotic or otherwise insane.

As adjectives the difference between insane and sadistic

is that insane is exhibiting unsoundness or disorder of mind; not sane; mad; deranged in mind; delirious; distracted while sadistic is delighting in or feeling pleasure from the pain of others.

As adjectives the difference between sadistic and pessimistic

is that sadistic is delighting in or feeling pleasure from the pain of others while pessimistic is marked by pessimism and little hopefulness; expecting the worst.