English

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Etymology 1

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From Middle English unfasten, unvesten, onfesten, equivalent to un- +‎ fast.

Verb

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unfast (third-person singular simple present unfasts, present participle unfasting, simple past and past participle unfasted)

  1. (transitive) To loose; release.

Etymology 2

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From un- +‎ fast.

Adjective

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unfast (comparative more unfast, superlative most unfast)

  1. Not fast or safe; not secure.
Derived terms
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Anagrams

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