The Collaborative International Dictionary of English v.0.48:
Beardless \Beard"less\, a. 1. Without a beard. Hence: Not having arrived at puberty or manhood; youthful. [1913 Webster] 2. Destitute of an awn; as, beardless wheat. [1913 Webster]WordNet (r) 3.0 (2006):
beardless adj 1: having no beard [syn: beardless, whiskerless] 2: lacking hair on the face; "a smooth-faced boy of 14 years" [syn: beardless, smooth-faced]