fluctuate

fluctuate is a   Verb

Definition:

[1] 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. Blackmore.

[2] To move now in one direction and now in another; to be wavering or unsteady; to be irresolute or undetermined; to vacillate.

Synonyms: