faltering
Definitions
Starting to lose strength or momentum.
Moving or speaking in an unsteady or hesitant manner.
Examples
Her faltering voice betrayed her nervousness as she began the presentation.
The team's faltering performance in the second half cost them the championship.
Despite his faltering steps, the elderly man managed to reach the finish line.
Synonyms
hesitant wavering stumbling unsteady vacillating shaky halting