Synonyms & related words for improbable

Find synonyms, related words, and the definition of improbable — including unlikely, unbelievable, implausible, unconvincing, inconceivable, impossible. 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 improbable

Explore words related to improbable — words associated with it, words that go with it, and its nearest matches in meaning. Related words include improbably, unlikeliness, improbability, unlikelihood, inconceivability, incogitable, plausible, preposterous. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for improbable

Common synonyms for improbable include unlikely, unbelievable, implausible, unconvincing, inconceivable, impossible, unthinkable, absurd — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does improbable come from?

The word improbable breaks down into 2 roots of Latin origin: im-, from Latin in (“not”); and -prob, from Latin probo (“prove, test”). Explore each root to see other English words built from the same source.