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1. Be unsure or weak
   "Their enthusiasm is faltering"
   - waver
    
2. Move hesitatingly, as if about to give way
   - waver
    
3. Walk unsteadily
   - stumble, bumble
    
4. Speak haltingly
   "The speaker faltered when he saw his opponent enter the room"
   - bumble, stutter, stammer

1. The act of pausing uncertainly
   - hesitation, waver, faltering

Derived forms: faltered, faltering, falters

Type of: balk, baulk [Brit], hesitate, mouth, move, pause, speak, talk, utter, verbalise [Brit], verbalize, waffle, walk, waver

Encyclopedia: Falter