simple past tense and past participle of unbutton

Having the buttons undone. / In disarray. / Informal, casual.

(transitive, intransitive) To open (something) by undoing its buttons. / (intransitive, ergative) To come open by having its buttons unfastened.

Third-person singular simple present indicative form of unbutton

present participle of unbutton

An act of unfastening buttons.

Capable of being unbuttoned.

Not capable of being buttoned.

plural of unbuttoning