Proof and Tossup

Opposite meaning words

Proof noun - Something presented in support of the truth or accuracy of a claim.

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Tossup is an antonym for proof.

Nearby Words: proofed, proofing

Tossup noun - An unpredictable phenomenon.

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Proof is an antonym for tossup in topics: luck, money or something gambled.

Cite this Source

Tossup and Proof. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/proof/tossup

Proof & Tossup. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/proof/tossup>.

Tossup or Proof. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/proof/tossup.

Google Ngram Viewer shows how "proof" and "tossup" have occurred on timeline