[buht-nd-uhp] 
| 1. | carefully planned, operated, supervised, etc.: one of the most buttoned-up companies in the business. |
| 2. | conservative, as in professional style or manner: Employers are looking for buttoned-up types. |
| buttoned-up | |
adjective | |
| 1. | (British colloquial) not inclined to conversation |
| 2. | conservative in professional manner; "employers are looking for buttoned-up types" |