unbutton

[ uhn-buht-n ]
/ ʌnˈbʌt n /

verb (used with object)

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.

verb (used without object)

to unfasten a button or one's buttons.

RELATED WORDS

Origin of unbutton

First recorded in 1275–1325, unbutton is from the Middle English word unbotenen. See un-2, button
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unbutton

British Dictionary definitions for unbutton

unbutton

/ (ʌnˈbʌtən) /

verb

to undo by unfastening (the buttons) of (a garment)
informal to release or relax (oneself, tension, etc)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012