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sinister Synonyms
Another word for sinister
Choosing another word for sinister depends on context, so the 16 synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
• adjective (Context 1)
Giving the impression that something harmful, threatening, or evil is happening or will happen.
Usage Example
"A menacing silence fell over the abandoned mansion as the storm clouds gathered overhead."
Strongest
menacing
ominous
threatening
Strong
foreboding
portentous
Weak
inopportune
• adjective (Context 2)
Wicked, corrupt, or motivated by malicious intent.
Usage Example
"The investigative journalist uncovered a malevolent plot to defraud the pension fund."
Strongest
malevolent
malicious
evil
Strong
wicked
nefarious
villainous
diabolical
heinous
underhanded
• adjective (Context 3)
Of, on, or toward the left-hand side of a heraldic shield from the bearer's point of view (appearing on the viewer's right).
Usage Example
"The family coat of arms featured a silver lion rampant on the left-hand side of the crest."
Strong
left-hand
Opposites of sinister
The opposite of sinister shifts depending on context. Common opposites include:
dexter
benign
virtuous
auspicious
noble
righteous
promising
honorable
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Sinister. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/sinister