IPA: /ɪmˈpæsɪvli/
KK: /ɪmˈpæsɪvli/
In a way that shows no emotion or feeling; without displaying any reaction.
She listened impassively to the news, showing no signs of distress.
Impassively → It is formed from "im-" (meaning not) and "passive" (from Latin "passivus", meaning capable of feeling or suffering) and the suffix "-ly" (meaning in a manner of). The word "impassively" means in a manner that does not show feelings or emotions, indicating a lack of response to suffering or stimuli.
Think of 'not' ('im-') feeling or responding ('passive') — that's why impassively means showing no feelings.