unbuttoned
1. [ adjective ] not buttoned
Synonyms: unfastened
Examples:

"the wind picked up the hem of her unbuttoned coat"

Related terms: buttoned open-collared open-collared
2. [ adjective ] not under constraint in action or expression
Synonyms: unlaced
Examples:

"this unbuttoned and disrespectful age"- Curtis Bok "unlaced behavior in the neighborhood pub"

Related terms: unrestrained
Similar spelling:   unbutton
  unfattened
  unpotted
  unpatterned
  unabated
  unfettered
  unputdownable
  unfitting