wavering

To sway back and forth; to totter or reel.

"Flowers wavered in the breeze."

To flicker, glimmer, quiver, as a weak light.

To fluctuate or vary, as commodity prices or a poorly sustained musical pitch.

To shake or tremble, as the hands or voice.

"His voice wavered when the reporter brought up the controversial topic."

A state of fluctuation or indecision.

"the waverings of politicians, trying to please everybody"

Fluctuating; being in doubt; undetermined; indecisive; uncertain; unsteady.