Synonyms For "Powerful" :

1 syllable:

right, stiff, strong

2 syllables:

brawny, hefty, mighty, potent, regent, regnant, reigning, ruling

3 syllables:

almighty, coercive, compelling, effective, mightily, muscular, puissant, sinewy

4 syllables:

effectual, efficacious, herculean, influential, omnipotent