(UN-1 12.)
1711. H. Felton, Classicks (1718), 56. Dryden wanted that Easiness, that Air of Freedom and Unconstraint, which is more sensibly to be perceived, than described.
1851. D. Coleridge, H. Coleridges Ess., etc. II. 268. The characteristic unconstraint and naïveté of the style carries with it an air of genuineness.
1865. Mrs. Whitney, Gayworthys, xxviii. It was so hard for him with his habits of unconstraint, to remember the traditional sanctities of the place.