\Ex*pe`ri*en"tial\, a. Derived from, or pertaining to, experience. --Coleridge. It is called empirical or experiential . . . because it is divan to us by experience or observation, and not obtained as the result of inference or reasoning. --Sir. W. Hamiltion. -- {Ex*pe`ri*en"tial*ly}, adv. --DR. H. More.