taciturn
🇺🇸
/ˈtæsɪtɜːrn/
🇬🇧
/ˈtæsɪtɜːn/
quiet and not talking much, often seeming unfriendly
The taciturn guard didn't say a word as we passed by.
那個沉默寡言的守衛在我們經過時一句話也沒說。