[grac.ile] adj [L gracilis] (1623) 1: slender, slight
2: graceful
3: relating to, resembling, or being any of the primitive relatively small slender hominids (genus Australopithecus) characterized esp. by molars and incisors of similar size that are adapted to an omnivorous diet--compare robust -- grac.ile.ness n -- gra.cil.i.ty n