1838 Jan. 89/2 Haughty iron-willed aristocrats.
1848 J. R. Lowell in 9 Nov. 96/1 In that far isle, whence, iron-willed, The new-world's sires their bark unmoored.
1951 M. McLuhan 67/1 Thurber's ‘Mother’ is a flint-eyed, iron-willed, Republican matriarch.
1991 8 Dec. ii. 27/5 His iron-willed authoritarianism.