un·​thaw | \ ˌən-ˈthȯ How to pronounce unthaw (audio) \
unthawed; unthawing

Definition of unthaw

transitive + intransitive

: thaw A fuel station operator apparently caused the 5:30 a.m. blast by using an open flame to unthaw a frozen tank valve …— Associated Press Escape the winter freeze and unthaw in beautiful tropical settings …Business Wire

Note: Although unthaw as a synonym of thaw is sometimes cited as an illogical error, it has persisted in occasional use for more than four centuries. It occurs in both American and British English.

Examples of unthaw in a Sentence

Recent Examples on the Web Sergei Fyodorov, a researcher at North-Eastern Federal University, tells the AP that climate change is affecting the Siberian permafrost, meaning people are finding more and more ancient creatures unthawing. Jason Daley, Smithsonian, "Was This 18,000-Year-Old Puppy Frozen in Siberian Permafrost the Ancestor of Wolves, Dogs or Both?," 3 Dec. 2019 Forget about unthawing chicken, boiling noodles or throwing in a pizza June 6. Hannah Kirby, Milwaukee Journal Sentinel, "This week it's all about the best of the fests in Milwaukee's western suburbs," 4 June 2018 The super-soldier serum allowed him to stay alive, and SHIELD unthaws him. Sonia Rao, chicagotribune.com, "Everything that's happened leading up to 'Avengers: Infinity War'," 24 Apr. 2018 Normally, there's about a 75% survival rate when unthawing frozen embryos. Susan Scutti, CNN, "Frozen embryo 'snowbaby' conceived the year after her mother was born," 19 Dec. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unthaw.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of unthaw

1598, in the meaning defined above

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The first known use of unthaw was in 1598

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Cite this Entry

“Unthaw.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unthaw. Accessed 5 Jul. 2020.

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