hesitation

nouns

indecision in speech or action
hesitation, vacillation, wavering
is derived from
hesitate
a certain degree of unwillingness
"a reluctance to commit himself"; "his hesitancy revealed his basic indisposition"; "after some hesitation he agreed"
disinclination, hesitancy, hesitation, indisposition, reluctance
is derived from
hesitate
the act of pausing uncertainly
"there was a hesitation in his speech"
falter, faltering, hesitation, waver
is derived from
hesitate