powerful

powerful adjective able, able-bodied, armipotent, authoritative, autocratic, autocratical, brawny, cogent, commanding, compelling, consequential, controlling, dominant, dominating, dynamic, effective, effectual, efficacious, empowered, forceful, forcible, great, hard, hearty, hegemonic, hegemonical, Herculean, high-potency, impelling, imperious, important, impregnable, indomitable, influential, intense, invincible, irresistible, leonine, loud, lusty, magisterial, mighty, multipotent, muscular, obeyed, omnipotent, overpowering, overwhelming, physically strong, plenipotent, potent, powerpacked, prevailing, puissant, regnant, reigning, resounding, rugged, ruling, sinewy, sovereign, stalwart, stentorian, stout, strapping, striking, strong, telling, trenchant, unconquerable, vehement, vigorous, weighty

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See also: absolute, assertive, cogent, consequential, considerable, convincing, decisive, drastic, efficient, eloquent, forcible, important, incisive, indomitable, inexpugnable, influential, intense, intensive, irresistible, omnipotent, persuasive, potent, predominant, prevailing, prominent, sound, sovereign, strong, substantial, trenchant, valid, vehement, virtual