1. Uncertain in purpose or action
   - vacillant, wavering

1. Be undecided about something; waver between conflicting positions or courses of action
   - hover, vibrate, oscillate, blow hot and cold 
2. Move or sway in a rising and falling or wavelike pattern
   "the line on the monitor vacillated"
   - fluctuate, waver

See also: irresolute, vacillation, vacillator

Type of: balk, baulk [Brit], hesitate, swing, waffle, waver

• co-ed
• co-host
• co-inhere
• co-occurrence
• co-occurrent
• Co-operative Republic of Guyana
• co-opt
• co-optation
• co-option
• co-relation
• co-star
• co-vary
• CO2
• coach
• coach dog
• cannikin
• cannily
• canniness
• cannister
• cannon
• cannon bone
• cannon cracker
• cannon fire
• cannon fodder
• cannonade