ppl. a. (UN-1 10.)
1836. Whittier, Mem. T. Shipley, 49. The unquailing eye of innocence.
1853. Rock, Ch. of Fathers, III. ix. 217. His heart was unquailing when he met his foemen.
1884. R. W. Church, Bacon, i. 25. Elizabeth’s … unquailing spirit at the time of the Spanish invasion.
Hence Unquailingly adv.
1845. [Emma Robinson], Whitehall, lxviii. [He] fixed his eyes steadily and unquailingly upon him.
