Found 2 items, similar to impassiveness.
English → English (WordNet) Definition: impassiveness impassiveness n : apathy demonstrated by an absence of emotional reactions [syn: emotionlessness, impassivity, phlegm, indifference, stolidity, unemotionality]
English → English (gcide) Definition: impassiveness impassiveness \im*pas"sive*ness\ n. an absence of emotion. Syn: apathy, impassivity. [WordNet 1.5]