2 synonym groups for Effortless

breeze, cakewalk, child's play, walkover, pushover, snap, doddle, piece of cake, picnic, no-brainer, breeze-through, easy task, simple matter, no sweat, walk in the park, duck soup, easy as pie, no problem, easy-peasy, effortless task, straightforward task, uncomplicated task, simple job, easy job, light work, trivial task, minor task, undemanding task, easy ride, smooth sailing, easy street, piece of pie, easy as ABC, no big deal, no hassle, no trouble, no difficulty, easy pickings, easy go, easy does it, easy peasy lemon squeezy, plain sailing, easy as 123, no strain, no bother, no fuss [x]

soar, float, sail, drift, slide, skim, coast cruise, sweep, flow slip, waft, hover, flit, fly, skitter, skiff, glissade [x]