Synonyms & related words for infectious

Find synonyms, related words, and the definition of infectious — including infective, contagious, transmissible, zymotic, communicable, epizootic. 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 infectious

Explore words related to infectious — words associated with it, words that go with it, and its nearest matches in meaning. Related words include infectiously, noninfectious, noncommunicable, infectiousness, contagiousness, contagiously, noncontagious, pathogenous. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for infectious

Common synonyms for infectious include infective, contagious, transmissible, zymotic, communicable, epizootic, virulent, epidemic — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does infectious come from?

The word infectious breaks down into one root of Latin origin: the root fect-, from Latin facio (“make, do”). Explore each root to see other English words built from the same source.