reticent
adjective /ˈretɪsnt/
/ˈretɪsnt/
(formal)- unwilling to tell people about things synonym reserved, uncommunicative
- She was shy and reticent.
- reticent about something He was extremely reticent about his personal life.
Word Originmid 19th cent.: from Latin reticent- ‘remaining silent’, from the verb reticere, from re- (expressing intensive force) + tacere ‘be silent’.