From Longman Dictionary of Contemporary Englishintrovertin‧tro‧vert /ˈɪntrəvɜːt $ -ɜːrt/ ●○○ noun [countable]SHYsomeone who is quiet and shy, and does not enjoy being with other peopleOPP extrovertOriginintrovert(1600-1700)intro- + -vert (as in divert)