IPA: /ɪkˈsprɛʃənləs/
KK: /ɪkˈsprɛʃənləs/
Not showing any emotions or feelings on the face.
She remained expressionless during the entire meeting, even when the news was surprising.
Expressionless → It is formed from "expression" (from Latin "expressio", meaning a pressing out or representation) and "-less" (meaning without). The word "expressionless" means without expression or emotion.
Think of being 'without' ('-less') any 'representation' or 'showing' of feelings ('expression').