taciturn

Từ điển Oxford Advanced Learner 8th

taci·turn BrE [ˈtæsɪtɜːn] NAmE [ˈtæsɪtɜːrn] adjective
(formal)tending not to say very much, in a way that seems unfriendly
•a taciturn and serious young man
Derived Word: ↑taciturnity

Word Origin:
[taciturn taciturnity] late 18th cent.: from Latin taciturnus, from tacitus, past participle of tacere ‘be silent’.

Example Bank:
•He was a taciturn and serious young man.