немногословный означает в английский

laconic▼(using as few words as possible)
adjective
[UK: ləˈk.ɒ.nɪk] [US: laˈkɑː.nɪk]

terse [terser, tersest]▼(brief, concise, to the point, see also: brief; concise)
adjective
[UK: tɜːs] [US: ˈtɝːs]

curt [curter, curtest]▼(brief or terse, especially to the point of being rude)
adjective
[UK: kɜːt] [US: ˈkɝːt]