ˌunder-ˈwitted, a.
[under-1 10 a.]
Of inferior or defective understanding; half-witted.
| 1683 Kennett Erasm. on Folly 18 Cupid..is an under⁓witted whipster. Ibid. 125 The Athenian Commander..was a little underwitted. 1856 Hawthorne Eng. Note-bks. (1870) I. 424, I rather think it [sc. a child] was under-witted, and could not talk. |