What does unbutton mean?
Unbutton is a verb meaning to undo the fastening of a button or buttons. A speaker may use it for clothing and similar objects, as in “unbutton your coat,” or for a garment that opens easily: “The old jacket unbuttons along the front.” The word can also be used intransitively, meaning that a fastening comes undone. Its literal sense is neutral and direct, while figurative uses—such as describing people becoming more relaxed or a situation becoming less constrained—suggest release rather than a specific mechanical action. Unbutton is formed from the prefix un- and button, so its basic meaning is readily understood even by a speaker who rarely encounters the word. The resulting phrase is especially useful for describing a deliberate small gesture: a coat opened for comfort, a collar loosened, or clothing prepared for more informal surroundings.
verbTo undo the fastening of a button or buttons, especially on clothing. It can also be used intransitively to mean that a button or garment fastening comes undone.
- To undo the fastening of a button or buttons, especially on clothing.
- To become unfastened or open at the buttons.
"She unbuttoned her coat before stepping into the crowded room."
"She unbuttoned her coat before stepping into the crowded room."
"The old jacket unbuttons easily along the front."
It turns the smallest of fastenings into a deliberate gesture of openness.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unbutton come from?
Unbutton is an English formation using the prefix un- with button. The verb dates from the early 17th century and originally referred to undoing a button fastening. Button itself came through Old French bouton, a diminutive of bote meaning “boss,” “stud,” or “knob,” ultimately from a Germanic source; related forms include French bouton, Spanish botón, and Portuguese botão.
Related word forms
How unbutton is actually used
The literal sense is neutral in register. The intransitive use, as in “the coat unbuttons,” is somewhat less common. Figurative uses can suggest becoming less formal, restrictive, or constrained.