1. (

• hover ,
• vibrate ,
• vacillate ,
• oscillate

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

2. (

• fluctuate ,
• vacillate ,
• waver ,

) move or sway in a rising and falling or wavelike pattern; "the line on the monitor vacillated" ;