im ‧ pas ‧ sive /ɪmˈpæsɪv/ BrE AmE adjective
not showing any emotion:
Her impassive face showed no reaction at all.
—impassively adverb :
The children studied him impassively.
—impassivity /ˌɪmpæˈsɪvəti, ˌɪmpæˈsɪvɪti/ noun [uncountable]
im ‧ pas ‧ sive /ɪmˈpæsɪv/ BrE AmE adjective
not showing any emotion:
Her impassive face showed no reaction at all.
—impassively adverb :
The children studied him impassively.
—impassivity /ˌɪmpæˈsɪvəti, ˌɪmpæˈsɪvɪti/ noun [uncountable]
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012