IPA: //ʌnɪkˈsprɛsɪv//
KK: /ʌnɪkˈsprɛsɪv/
Not showing feelings or emotions; lacking expression.
His face was unexpressive, making it hard to know what he was thinking.
Unexpressive → It is formed from "un-" (meaning not) and "expressive" (from Latin "expressivus", meaning to press out or convey). The word "unexpressive" means not conveying emotions or feelings.
Think of 'not' ('un-') conveying or showing feelings ('expressive'). This helps you remember that 'unexpressive' means lacking expression.