impassivity impassiveness • impastation · · · Info · Definitions · Synonyms · Characters · · impassivity · · Text Latin · · Script 11 · · Length 5 · · Syllables Definitions · · · (noun) apathy demonstrated by an absence of emotional reactions. Synonyms: emotionlessness, impassiveness, phlegm, indifference, stolidity, unemotionality. · · Noun Definition 1 Synonyms · · · emotionlessness · · Synonym 1 impassiveness · · Synonym 2 phlegm · · Synonym 3 indifference · · Synonym 4 stolidity · · Synonym 5 unemotionality · · Synonym 6 Characters · · a latin small letter a U+0061 i latin small letter i U+0069 m latin small letter m U+006D p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074 v latin small letter v U+0076 y latin small letter y U+0079