Princeton's WordNet

1. hesitation, waver, falter, faltering(adj)

   the act of pausing uncertainly

   "there was a hesitation in his speech"

2. faltering(adj)

   unsteady in speech or action

Wiktionary

1. faltering(Noun)

   hesitancy

Webster Dictionary

1. Faltering(u)

   of Falter

2. Faltering(adj)

   hesitating; trembling

3. Faltering(noun)

   falter; halting; hesitation

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