C1 adjective /ʌnˈsɪvəlaɪzd/
Uncivilized
некультурный; дикий;
Meaning
not developed in terms of civilization; lacking social organization and culture; barbarous
Example
The explorers encountered an uncivilized tribe deep in the Amazon rainforest.
Исследователи столкнулись с некультурным племенем в глубине амазонского леса.