to hesitate or waver in action, purpose, intent, etc.; give way

Her courage did not falter at the prospect of hardship.

to speak hesitatingly or brokenly.

to move unsteadily; stumble.

to utter hesitatingly or brokenly

to falter an apology.

the act of faltering; an unsteadiness of gait, voice, action, etc.

a faltering sound.

verb

continue , endure , maintain , persist , remain , stay

verb

be undecided , bobble , break , drop the ball , flounder , fluctuate , fluff , halt , hem and haw * , hesitate , lurch , quaver , reel , rock , roll , scruple , shake , speak haltingly , stagger , stammer , stub toe , teeter , topple , totter , tremble , trip up , vacillate , waver , whiffle , wobble , dither , pause , shilly-shally , stumble , weave , boggle , err , fail , shudder , stutter