Definition of waver :
1. A sapling left standing in a fallen wood.
2. To be unsettled in opinion; to vacillate; to be undetermined; to fluctuate; as, to water in judgment.
3. To play or move to and fro; to move one way and the other; hence, to totter; to reel; to swing; to flutter.
flick, swing, shilly-shally, bumble, wait and see, play, filter, dart, stammer, keep/leave your options open, fluctuate, reflect, oscillate, quake, flapping, vibrate, bend, pause, bathe, undulate, balance, totter, meander, swerve, thread, flit, stall, stumble, disruption, change, waffle, vacillation, deliberate, hesitancy, reel, hang back, warble, quaver, stagger, indisposition, hesitation, commotion, tissue, scruple, pulsate, focus, flood, veer, hesitate, disturbance, vary, saw, spark, catch, wander, bat, fluttering, wobble, repetition, interweave, see which way the wind blows/is blowing, hoo-hah, flap, beat, weave, halt, wavering, stutter, hoo-ha, teeter, fleet, reluctance, dither, to-do, kerfuffle, wind, decide, dillydally, hover, flitter, rock, fade, hurly burly, sway, um and ah, palpitate, trill, falter, faltering, hem and haw, disinclination
doubt (part of speech: verb)
flicker (part of speech: verb)
- His mother straightened herself, but I saw her eye waver. - "The Greater Inclination", Edith Wharton.
- A moment he seemed to waver. - "A Man and His Money", Frederic Stewart Isham.
- She hesitated almost imperceptibly, seemed for a brief second to waver. - "Captivating Mary Carstairs", Henry Sydnor Harrison.