- to undo by unfastening (the buttons) of (a garment)
WordReference Random House Learner's Dictionary of American English © 2026
un•but•ton /ʌnˈbʌtən/USA pronunciation
v. [~ + object]
WordReference Random House Unabridged Dictionary of American English © 2026- to unfasten or undo the buttons of (a piece of clothing).
un•but•ton
(un but′n),USA pronunciation v.t.
v.i.
- to free (buttons) from buttonholes;
unfasten or undo. - to unfasten by or as if by unbuttoning:to unbutton a jacket.
- to disclose (one's feelings, thoughts, etc.) after deliberate or prolonged silence.
v.i.
- to unfasten a button or one's buttons.
- Middle English unbotenen. See un-2, button 1275–1325
Collins Concise English Dictionary © HarperCollins Publishers::
unbutton /ʌnˈbʌtən/ vb
'unbutton' also found in these entries (note: many are not synonyms or translations):