ppl. a. (Stress var.) [f. prec.] Having a protruding lower jaw; underhung.

1

1772.  Lady Mary Coke, Jrnl., 25 Jan. He is under jaw’d and his chin advances a considerable way.

2

1812.  Shaw, Gen. Zool., II. 495. Under-jawed Mysticete.

3

1864.  Realm, 2 March, 1. Her mouth, which, slightly underjawed, loses in softness what it gains in piquancy.

4