Sign on and Unauthorize

Opposite meaning terms

Sign on verb - Engage by written agreement.

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Unauthorize is an antonym for sign on in countersign a check topic.

Definitions of Sign on not found.

Sign on is an antonym for unauthorize.

Cite this Source

Unauthorize and Sign on. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/sign_on/unauthorize

Sign on & Unauthorize. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/sign_on/unauthorize>.

Unauthorize or Sign on. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/sign_on/unauthorize.

Google Ngram Viewer shows how "sign on" and "unauthorize" have occurred on timeline