sinister
11 synonyms and 6 antonyms for sinister, grouped by meaning and by how common each one is.
Adj — Suggesting evil intent or hidden danger.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Synonyms by Meaning
1. adj
Suggesting evil intent or hidden danger.
“There was something sinister about the way he smiled.”
Opposites
How to use sinister
The word patterns that sound natural to a native speaker.
sinister motive
sinister figure
something sinister
Etymology
From Latin sinister, meaning "left" — the left side was historically associated with bad luck and ill omen.
Full origin of sinister →Frequently asked questions
What does “sinister” mean?
The word “sinister” means suggesting evil intent or hidden danger. In plain terms, giving off a menacing or threatening feeling.
How do you pronounce “sinister”?
“Sinister” is pronounced SIH-nih-stuh (/ˈsɪ.nɪ.stəɹ/ in IPA).
How do you use “sinister” in a sentence?
Here is “sinister” used in a sentence: “There was something sinister about the way he smiled.”
What part of speech is “sinister”?
“Sinister” is an adjective.
Where does the word “sinister” come from?
The word “sinister” comes from Latin. From Latin sinister, meaning "left" — the left side was historically associated with bad luck and ill omen.
Is “sinister” a common word?
“Sinister” is an uncommon word in modern English.
How many meanings does “sinister” have?
“Sinister” has 2 distinct senses listed in this dictionary. The most common is: suggesting evil intent or hidden danger.
What is the difference between sinister and evil?
Sinister describes something that suggests or hints at hidden danger or wrongdoing, often through appearance or atmosphere, without confirming actual harm has occurred. Evil describes something that is actually morally wrong or harmful, a stronger and more definite judgment than sinister.
What does sinister mean in heraldry?
In heraldry, sinister refers to the left-hand side of a shield as viewed from behind it, which corresponds to the viewer's right. This is a technical, specialized use distinct from the everyday meaning of suggesting evil intent.
Can sinister describe a place or feeling, not just a person?
Yes, sinister is commonly used to describe atmospheres, buildings, or situations that feel threatening or ominous, not only people. A dimly lit alley or an unexplained silence can both be described as sinister.
