waver

Noun

• the act of moving back and forth

• the act of pausing uncertainly
  • there was a hesitation in his speech
    

• someone who communicates by waving

Verb

• give off unsteady sounds, alternating in amplitude or frequency

• sway to and fro

• move back and forth very rapidly
  • the candle flickered
    

• move or sway in a rising and falling or wavelike pattern
  • the line on the monitor vacillated
    

• move hesitatingly, as if about to give way

• be unsure or weak
  • Their enthusiasm is faltering
    

• pause or hold back in uncertainty or unwillingness
  • Authorities hesitate to quote exact figures
    

Related words

• Synonyms: 
  flutter , flicker , hesitation , falter , faltering , quaver , weave , flitter , quiver , fluctuate , vacillate , hesitate , waffle