'Purposeful' definitions:

Definition of 'purposeful'

From: WordNet
adjective
Serving as or indicating the existence of a purpose or goal [ant: purposeless]
adjective
Having meaning through having an aim; "led a happy purposeful life"

Definition of 'Purposeful'

From: GCIDE
  • Purposeful \Pur"pose*ful\, a. Important; material. "Purposeful accounts." --Tylor. -- {Pur"pose*ful*ly}, adv. [1913 Webster]

Definition of 'purposeful'

From: GCIDE
  • meaningful \meaningful\ adj. Having a meaning or purpose; having significance; as, a meaningful explanation; a meaningful discussion; a meaningful pause; to live a meaningful life. Opposite of meaningless. [Narrower terms: comprehensible, understandable; {indicative, significative, suggestive ; {meaty, substantive ; purposeful] Also See: purposeful, significant, important. [WordNet 1.5]