[UN-1 12.] The fact of not concerning oneself; unconcern.
1660. Stanley, Hist. Philos., IX. (1687), 507/1. This happened from two Causes, as well by reason of the unconcernment of the Cities … as by reason of the Death of the most excellent persons.
1676. Glanvill, Ess., I. 31. If there be any repose attainable by the Methods of Reason, there is nothing so like to afford it, as unconcernment in doubtful Opinions.
1716–7. Bentley, Serm., xi. 383. The Seat of Selfishness and of Unconcernment for all about him.
1832. W. Stephenson, Gateshead Local Poems, 69. No matter where these daring souls have been, They always are in unconcernment seen.
1892. Nation (N.Y.), 12 May, 364. They show the scholar among his books, handling his thoughts with a certain unconcernment.
