Synonyms & related words for unauthorised

Find synonyms, related words, and the definition of unauthorised. 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 unauthorised

Explore words related to unauthorised — words associated with it, words that go with it, and its nearest matches in meaning. Related words include unauthorized, unapproved, unaccredited, unlawful, illegal, unsanctioned, illicitly, authorized. Click any word to make it the center of the map and keep exploring the web of connections.

Where does unauthorised come from?

The word unauthorised breaks down into 4 roots of Old English, Latin, and Greek origin: un-, from Old English un (“not”); author, from Latin auctor (“originator, one who causes to grow”); -ise, from Greek -izein (“to make into”); and -d, from Old English -ed (“past participle”). Explore each root to see other English words built from the same source.