Powerfully rhymes with:
colorfully, awfully, beautifully, briefly, chiefly, colorfully, diffley, gruffly, hafley, heffley, hefley, medfly, muffley, peffley, roughly, safely, safley, schlafly, stampfli, stiffly, wolfley
Powerfully sounds like:
parable, parabola, parboil, powerball, powerful, prayerful, prebble, preble, prevail, preval, pribble, pribula, pribyl, probable, probably, profile, propel, provable, purple