Synonyms of powerfulness

1 Syllable
thew, vim, pow, pith, brawn, sock, clout, might, health, zip
2 Syllables
force, stoutness, body, muscle, soundness, toughness, vigor, sinew, firmness, power, nerve
3 Syllables
strenuousness, physique, brawniness, backbone, lustiness, energy, hardiness, healthiness, stableness, stalwartness, steadiness, steamroller, courage, sturdiness, verdure, puissance, robustness, potence, potency, substance
4 Syllables
vitality, tenacity, stability, forcibleness, qualifiedness, powerhouse, security, efficiency, efficiencies, fortitude
5 Syllables
durability