He's or'narily sitch a cool, unexcitable man.
"The Prairie Chief"
R.M. Ballantyne
"It is all right," Charley, who was of an unexcitable temperament, said.
"On the Pampas"
G. A. Henty
Experience of races, as well as of individuals, does not show those of excitable temperament to be less fit, on the average, either for speculation or practice, than the more unexcitable.
"The Subjection of Women"
John Stuart Mill