Athletic \Ath`let"ic\, a. [L. athleticus, Gr. ?. See {Athlete}.] 1. Of or pertaining to athletes or to the exercises practiced by them; as, athletic games or sports. [1913 Webster] 2. Befitting an athlete; strong; muscular; robust; vigorous; as, athletic Celts. "Athletic soundness." --South. -- {Ath*let"ic*al*ly}, adv. [1913 Webster]