Dictionary
nig•gle
Pronunciation: (nig'ul), [key]—
v.i., -gled, -gling.
1. to criticize, esp. constantly or repeatedly, in a peevish or petty way; carp:
to niggle about the fine points of interpretation; preferring to niggle rather than take steps to correct a situation.
2. to spend too much time and effort on inconsequential details:
It's difficult to be meticulous and not niggle.
3. to work ineffectively; trifle:
to niggle with an uninteresting task. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.