Synonyms of sinister

sinister

adjective

ˈsi-nə-stər 

as in ominous

being or showing a sign of evil or calamity to come

the movie relies too much on sinister background music to create the suspense that the plot sorely lacks

Synonyms & Similar Words

• ominous
• menacing
• threatening
• bleak
• dark
• foreboding
• somber
• murky
• portentous
• lonely
• darkening
• baleful
• minatory
• dire
• black
• unfortunate
• inauspicious
• direful
• grey
• desolate
• depressing
• depressive
• ill
• gray
• doomy
• ill-boding
• morbid
• sombre
• cold
• unfavorable
• dim
• morose
• lugubrious
• gloomy
• saturnine
• sullen
• sepulchral
• lonesome
• cheerless
• elegiac
• funereal
• discouraging
• troubled
• dismal
• evil
• dreary
• disconsolate
• glum
• forlorn
• malignant
• unpropitious
• chill
• hopeless
• cloudy
• drear
• disheartening
• unpromising
• miserable
• malign
• comfortless
• elegiacal
• plutonian
• tenebrous
• godforsaken
• wretched
• unlucky
• dreich
• Cimmerian
• sunless
• tenebrific
• ill-fated
• ill-starred
• star-crossed

Antonyms & Near Antonyms

• favorable
• benign
• bright
• promising
• golden
• hopeful
• encouraging
• unthreatening
• prosperous
• auspicious
• propitious
• heartening

Synonym Chooser

How is the word sinister different from other adjectives like it?

The words baleful and malign are common synonyms of sinister. While all three words mean "seriously threatening evil or disaster," sinister suggests a general or vague feeling of fear or apprehension on the part of the observer.

a sinister aura haunts the place

When is it sensible to use baleful instead of sinister?

The synonyms baleful and sinister are sometimes interchangeable, but baleful imputes perniciousness or destructiveness to something whether working openly or covertly.

exerting a corrupt and baleful influence

When would malign be a good substitute for sinister?

The words malign and sinister are synonyms, but do differ in nuance. Specifically, malign applies to what is inherently evil or harmful.

the malign effects of racism

Example Sentences

Recent Examples of sinister

As digitally dropped threats from an unknown predator grow increasingly sinister during the protagonist’s big date at a Chicago restaurant, the messages blast across the big screen in huge letters, or plaster an entire wall of the ladies’ restroom. —Chicago Tribune, 11 Apr. 2025

Thorne starred in the film as a young woman who discovers her father has been killed after returning to her small hometown, while Rourke, 72, starred as a sinister sheriff. —Latoya Gayle, People.com, 11 Apr. 2025

Season 1 had plenty of satisfying, if predictable turns: the people living in a bubble, the double agent, the rebellion of Episodes 6 and 7, and the sinister nature of Sinatra/Samantha (Julianne Nicholson). —Proma Khosla, IndieWire, 5 Mar. 2025

The supernatural thriller is set in the Jim Crow South, where twin brothers—each played by Jordan—return home from Chicago with hopes of starting over, only to confront a sinister force that’s been waiting for them. —Essence, 2 Apr. 2025

Phrases Containing sinister

• bar sinister