1. Having a clear head; clear of intellect.
1709. Hearne, Collect. (Oxf. Hist. Soc.), II. 308. He was certainly a very clear-headed Man.
1818–60. Whately, Commonpl. Bk. (1864), 145. A very clear-headed man must always perceive some of the truths which are generally overlooked.
1875. Hamerton, Intell. Life, I. iii. 15. One of the most clear-headed and hard-working men of his generation.
2. Characteristic of a clear head.
1857. W. Collins, Dead Secret, V. i. (1861), 197. Plain clear-headed common sense.
1863. P. Barry, Dockyard Econ., 282. Clear-headed calculations.
Hence Clear-headedness.
1882. Society, 14 Oct., 18/2. I still survive to marvel at your clear-headedness.
1884. F. P. Cobbe, in Contemp. Rev., Dec., 796. A man of … almost abnormal clear-headedness.
