Akademik

buttoned-up

adjective

1. (British colloquial) not inclined to conversation

• Similar to: ↑taciturn

• Usage Domain: ↑colloquialism

• Regions: ↑United Kingdom, ↑UK, ↑U.K., ↑Britain, ↑United Kingdom of Great Britain and Northern Ireland, ↑Great Britain

2. conservative in professional manner

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employers are looking for buttoned-up types

• Similar to: ↑conservative

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ˌbuttoned-ˈup 7 [buttoned-up] adjective (informal, especially BrE)

not expressing your emotions openly

Useful english dictionary. 2012.