Definition of unbutton verb from the Oxford Advanced Learner's Dictionary

 

unbutton

 verb
verb
BrE BrE//ˌʌnˈbʌtn//
 
; NAmE NAmE//ˌʌnˈbʌtn//
 
Verb Forms present simple I / you / we / they unbutton
BrE BrE//ˌʌnˈbʌtn//
 
; NAmE NAmE//ˌʌnˈbʌtn//
 
he / she / it unbuttons
BrE BrE//ˌʌnˈbʌtnz//
 
; NAmE NAmE//ˌʌnˈbʌtnz//
 
past simple unbuttoned
BrE BrE//ˌʌnˈbʌtnd//
 
; NAmE NAmE//ˌʌnˈbʌtnd//
 
past participle unbuttoned
BrE BrE//ˌʌnˈbʌtnd//
 
; NAmE NAmE//ˌʌnˈbʌtnd//
 
-ing form unbuttoning
BrE BrE//ˌʌnˈbʌtnɪŋ//
 
; NAmE NAmE//ˌʌnˈbʌtnɪŋ//
 
 
jump to other results
unbutton something to undo the buttons on a piece of clothing He unbuttoned his shirt. opposite button (1)
See the Oxford Advanced American Dictionary entry: unbutton