sinister
Ominous and malevolent
Sinister describes something that suggests evil, harm, or malevolent intent: a sinister figure lurking in the shadows, sinister motives.
The word implies threat through darkness or concealment rather than open hostility—a sinister smile unsettles because you sense hidden danger.
In heraldry, sinister means the left side of a shield (from the bearer's perspective), reflecting the old superstition that left-handedness was unlucky or evil.
Harboring ill will
- wickedEvil or slang-excellent
- nefariousExtremely evil or villainous
- villainousExtremely wicked or criminal
- diabolicalExtremely wicked or cruel
malicious · fiendish · dastardly · corrupt · depraved · vile · heinous · pernicious
Fearful anticipation of harm
- menacingConveying threat or danger
- threateningExpressing intent to harm
- eerieDisturbingly strange
- creepyDisturbingly strange
chilling · haunting · gloomy · macabre · shadowy · uncanny · spooky · mysterious
Portending misfortune ahead
- inauspiciousShowing poor prospects
- cursedUnder a malevolent spell
- jinxedAfflicted with misfortune
- ill-fatedDestined to fail
doomed · star-crossed · unfortunate · accursed · blighted · baleful · ominous · portent
malevolent
Harboring ill will
- wickedEvil or slang-excellent
- nefariousExtremely evil or villainous
- villainousExtremely wicked or criminal
diabolical · malicious · fiendish · dastardly · corrupt · depraved · vile · heinous · pernicious · iniquitous
foreboding
Fearful anticipation of harm
- menacingConveying threat or danger
- threateningExpressing intent to harm
- eerieDisturbingly strange
creepy · chilling · haunting · gloomy · macabre · shadowy · uncanny · spooky · mysterious · unsettling
ill-omened
Portending misfortune ahead
- inauspiciousShowing poor prospects
- cursedUnder a malevolent spell
- jinxedAfflicted with misfortune
ill-fated · doomed · star-crossed · unfortunate · accursed · blighted · baleful · ominous · portent · ill-starred
left-handed
Dominant on sinister side
- fearfear, dread, afraid, fright, frightened
- horrorhorror, terror, fear, dread, haunted
- dramatic tonesintense, tense, suspenseful, ominous, foreboding
- menacingthreatening, intimidating, menacing, ominous, foreboding
- mysteriousmysterious, cryptic, enigmatic, arcane, obscure
- thrillerssuspense, thriller, nail-biter, page-turner, cliffhanger
sinisterreassuring
Restoring calm or confidence
unthreatening · harmless · welcoming · comforting · inviting
sinisterauspicious
Indicating future success
propitious · favorable · fortunate · promising · hopeful