The word 'impassiveness' is correct and usable in written English.
It is derived from the adjective 'impassive' which means showing no emotion or reaction. 'Impassiveness' is the noun form of the adjective and it refers to the quality of being unemotional or not showing any emotion or reaction. Example: Despite the intense criticism and insults directed at her, she maintained an air of impassiveness, never once showing any signs of being affected by them.
For 50 years he posed friends, neighbours, models, and family members in his studio, often as if strewn casually across dilapidated furniture, and confronted their nude flesh with both keen interest and a kind of clinical impassiveness.
This movie comes from the team behind "Shaun of the Dead," and displays the same impassiveness in the face of outrageous events.
But as anyone who has lived here all his life knows, everything is taking place with a strange and disheartening kind of impassiveness.
This, like other painful interludes during the novel, such as his misfiring relationship with the estranged wife of one of his team-mates, or a surprise visit by his father, is recounted with a striking impassiveness and blankness of tone, as if the novelist-in-waiting is simply recording all that happens to him in order to make sense of it later.
Onstage, the Ramonas are closer in tenor to the proto-punk girl band the Runaways – if Joey Ramone were around to see himself being "inhabited" by Lisa Cloey Breyerer, he might be impressed that she has created a persona that somehow blends his stark impassiveness and her own fizzing energy.
With such violence in these characters' internal worlds, and such a maddening external impassiveness, those inner passions are bound to break out somehow, and it won't be pretty.
This week Sarah saw The Circus of Horror at a 21st birthday party: "Grandparents watched performers attaching a Hoover to their genitals with the impassiveness of a wartime generation".
His expression is somewhere between remorse and impassiveness.
Her manner, gracious and upfront, lies halfway between the hyper-feminine breathiness she offers up for TV talk shows and the tough, stony-faced impassiveness she displays on the court.
