ppl. a. [UNDER-1 10 a.] Not furnished with a sufficient number of men; short-handed; under-staffed.
1867. Smyth, Sailors Word-bk., 706. Under-manned, when a ship has an insufficient complement.
1889. Boston Mission. Herald, June, 236. These are all wide-reaching centers, and every one is undermanned.
1900. Sir W. Kennedy, Life of a Sailor, xiii. 202. She was nothing else than an undermasted, undermanned coal-hulk.