(UN-1 12.)
1611. Cotgr., Impassibilité, vnpassionatenesse.
1655. M. Casaubon, Enthus., iii. (1656), 159. Stoicks and Cynicks who chose to beg, and to be trampled upon , to make good their profession of unpassionatnesse.
1673. O. Walker, Educ., 205. If your election be made with indifferency, unpassionateness, and sincerity.