Weighty Weighty synonyms heavy weighty and heavy important weighty and important grave weighty and grave hefty weighty and hefty momentous weighty and momentous significant weighty and significant ponderous weighty and ponderous onerous weighty and onerous burdensome weighty and burdensome consequential weighty and consequential Full list of synonyms (1302) Weighty antonyms unimportant weighty and unimportant trivial weighty and trivial minor weighty and minor insignificant weighty and insignificant light weighty and light weightless weighty and weightless small weighty and small inconsequential weighty and inconsequential trifling weighty and trifling little weighty and little Full list of antonyms (114) Share this picture Share this image Share this picture Share this image