English edit

Etymology 1 edit

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

Verb edit

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

  1. (transitive) To loose; release.

Etymology 2 edit

From un- +‎ fast.

Adjective edit

unfast (comparative more unfast, superlative most unfast)

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

Anagrams edit