unbutton

[ uhn-buht-n ]

/ ʌnˈbʌt n /

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.

to unfasten a button or one's buttons.

Origin of unbutton

First recorded in 1275–1325, unbutton is from the Middle English word unbotenen. See un-², button

unbuild, unbundle, unbundled, unbundling, unburden, unbutton, unbuttoned, unc, uncage, uncaged, uncal

Raise: Unbutton the flap of the holster with the right hand and grasp the stock, back of the hand outward.

Manual for Noncommissioned Officers and Privates of Cavalry of the Army |War Department.
Perhaps he'll unbutton after a bottle or two of champagne, or at any rate a third.

Modeste Mignon |Honore de Balzac
Then he commenced to pant, to feel suffocated, and he had to unbutton his shirt-collar and his belt.

The works of Guy de Maupassant, Vol. 5 (of 8) |Guy de Maupassant 1850-1893
His only reaction to this was to step forward and continue to unbutton her blouse.

Ten From Infinity |Paul W. Fairman

It will be cold to unbutton, but if I only know that it's getting near morning I shall at any rate feel more cheerful.

Master and Man |Leo Tolstoy

unbutton

/ (ʌnˈbʌtən) /

to undo by unfastening (the buttons) of (a garment)

informal to release or relax (oneself, tension, etc)