Synonyms & related words for sinister

Find synonyms, related words, and the definition of sinister — including ominous, baleful, menacing, nefarious, malevolent, diabolical. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to sinister

Explore words related to sinister — words associated with it, words that go with it, and its nearest matches in meaning. Related words include sinisterness, sinisterly, fiendish, devilish, diabolic, ominousness, balefulness, sinistrous. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for sinister

Common synonyms for sinister include ominous, baleful, menacing, nefarious, malevolent, diabolical, minatory, minacious — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does sinister come from?

The word sinister breaks down into one root of Latin origin: the root sinister-, from Latin sinister (“left, unlucky”). Explore each root to see other English words built from the same source.