mean·ing·ful/`minɪŋfḷ; ˈmiːnɪŋfəl/ adj 1 serious, useful, or important 严肃的; 有用的; 重要的: a meaningful relationship 重要的关系 2 easy to understand 容易理解的: The data isn't very meaningful to anyone but a scientist. 这份资料除了科学家谁都看不太明白。 3 a meaningful look/smile etc a look etc that clearly expresses the way someone feels 意味深长的眼神/微笑等