unbutton
verb (used with object)
to free (buttons) from buttonholes; unfasten or undo.
Used to describe actions that started in the past and continue into or have direct relevance to the present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In redefining what constitutes Uffizi territory, the museum has unbuttoned its collar in outreach efforts, a process accelerated by the exigencies of the pandemic.
From New York Times ● Jan. 31, 2022