Collocations for hesitation - noun

brief, fractional, momentary, slight
There was a momentary hesitation before he replied.

initial
After some initial hesitation, teachers seem to have accepted the new system.

after … ~
After much hesitation, they decided to leave.

without ~
She answered immediately, without any hesitation.

have no hesitation in doing sth
I have no hesitation in recommending him for the job.

a moment''s hesitation, a moment of hesitation
After a moment''s hesitation, he nodded.