Synonyms of heavyweight

1 Syllable
l, fat, huge, gross, built, big, vip
2 Syllables
bigger, large, chunky, hefty, gravid, whoever, big-deal, biggest, awkward, loaded, cheese, cumbrous, laden, pooh-bah, buller, beefy, fleshy, doozie, ample, copious, bulky
3 Syllables
megastar, higher-up, achiever, lead-footed, expectant, gargantuan, abundant, pathfinder, enceinte, pathfinders, bigtime, foremost, substantial, corpulent, achievers, superiors
4 Syllables
excessive, somebodies, burdensome, somebody, celebrity, celebrities, cumbersome, personage, large-scale, memorable
5 Syllables
elephantine, considerable