Synonyms of cumbersome

2 Syllables
heftier, bulkier, heavy, hefty, clunker, bulkiest, cumbrous, two-ton, clunky, clunking, lumpish, hulky, heaviest, leaden, weightier, weighty, heavier, hulking, bulky
3 Syllables
unwieldy, top-heavy, unhandy, galumphing, onerous, ponderous, massive, heavyweight
4 Syllables
oppressive, wearisome, burdensome, incommodious, inconvenient, imbalanced, tiresome, embarrassing, overtaxing, discommodious
5 Syllables
unmanageable