To be irresolute in acting or doing
To walk unsteadily
He didn't falter, and when his lips met hers, she melted in his arms.
Hearing the whole truth makes me falter a bit when I think about what happened.
If they put a gun to my grandson, I'd falter in a minute.
As she was overcome with anxiety while giving a speech, the crowd heard her voice falter.
Do not falter, but have confidence when you go into an interview.