transitive verb-·tied′, -·ty′ing or -·tie′ing
- to loosen, undo, or unfasten (something tied or knotted)
- to free, as from difficulty, restraint, etc.
- to resolve (perplexities, etc.)
Origin of untieMiddle English unteien from Old English untigan: see un- and tie
to become untied
verbun·tied, un·ty·ing, un·ties
- To undo or loosen (a knot or something knotted).
- To free from something that binds or restrains: untie a horse from a tree.
- To straighten out (difficulties, for example); resolve.
To become untied.
(third-person singular simple present unties, present participle untying or untieing, simple past and past participle untied)
un- + tie