| Fluctuate 1. (v. i.) To move irregularly; to waver unsteady; to vacillate. 2. (v. i.) To move as a wave; to roll hither and thither; to wave; to float backward and forward, as on waves; as, a fluctuating field of air. 3. (v. t.) To cause to move as a wave; to put in motion. Thesaurus Entries alternate, back and fill, bob, bobble, careen, change, chop and change, coggle, dangle, dither, ebb and flow, equivocate, flounder, flutter, go through phases, intermit, lack regularity, librate, lurch, nutate, oscillate, pendulate, pitch, recur, reel, resonate, return, reverse, ring the changes, rock, roll, seesaw, shake, shift, shilly-shally, shuffle, stagger, swag, sway, swing, teeter, teeter-totter, tergiversate, toss, totter, turn, vacillate, vary, vibrate, wag, waggle, wave, waver, wax and wane, wobble |