Synonyms of oscillating

Verb

1. hover, vibrate, vacillate, oscillate, hesitate, waver, waffle

usage: be undecided about something; waver between conflicting positions or courses of action; "He oscillates between accepting the new position and retirement"

2. oscillate, vibrate, swing, sway

usage: move or swing from side to side regularly; "the needle on the meter was oscillating"

Adjective

1. oscillatory, oscillating, periodic (vs. aperiodic), periodical

usage: having periodic vibrations