falter

Meanings

• the act of pausing uncertainly
• be unsure or weak
  • "Their enthusiasm is faltering"
• move hesitatingly, as if about to give way
• walk unsteadily
• speak haltingly
  • "The speaker faltered when he saw his opponent enter the room"

Synonyms

bumble, faltering, hesitation, stammer, stumble, stutter, waver