impassive
showing no emotion
Roots
- im- / in- (not): not or without
- pass / pati: suffer, feel, or undergo
Other words with the pass / pati root
Impassive is not-feeling on the surface: no visible emotional response.
She stayed impassive while the room argued around her.
Pass / pati can mean suffer, feel, or undergo. Impassive adds not: the feeling is absent, hidden, or not showing on the face.