The Oxford Thesaurus An A-Z Dictionary of Synonyms - meaningfuladj.

1) significant, important, consequential, serious, sober, deep, substantial, pithy, substantive, telling, weighty, valid, relevant: Tired of casual encounters, he was ready for a meaningful relationship. 2) suggestive, pregnant, tell-tale, pointed, sententious, significant, expressive, eloquent: She gave him a meaningful look.