falter
To suddenly become weak, unsteady, or unsure while doing something.
To falter means to stumble or lose strength, becoming unsteady or hesitant when you were moving forward with confidence. When a runner falters near the finish line, their legs might wobble and their pace might slow. When a student's voice falters during a presentation, they might pause awkwardly or speak less clearly than before.
The word captures that moment when confidence or strength starts to give way. A basketball team that's been winning all season might falter in the playoffs, suddenly losing games they should have won. A company's profits might falter after years of success. Your resolve to practice piano every day might falter after a few weeks.
Faltering doesn't necessarily mean complete failure or collapse. It's more like hitting a rough patch or experiencing a wobble. A mountain climber might falter on a difficult section of the climb but then regain their footing and continue upward. The word often appears in the phrase without faltering, which means staying steady and strong: “She completed the marathon without faltering.”
When you falter, you're still in the game; you've just hit a moment of weakness or uncertainty. What happens next depends on whether you can steady yourself and push through.