Allowable and Unauthorised

Opposite meaning words

Allowable adjective - That may be permitted.

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Unauthorised is an antonym for allowable.

Nearby Words: allow, allowance, allowed, allowing, allowably

Unauthorised adjective - Not endowed with authority.

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Allowable is an antonym for unauthorised.

Nearby Word: unauthorized

Cite this Source

Unauthorised and Allowable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/allowable/unauthorised

Allowable & Unauthorised. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/allowable/unauthorised>.

Unauthorised or Allowable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/allowable/unauthorised.

Google Ngram Viewer shows how "allowable" and "unauthorised" have occurred on timeline