English-Italian translation for "niggle"

niggle {noun} (also: expedient, ploy, quiddity, quibble)

to niggle [niggled|niggled] {v.t.} (also: to nag, to badger, to pester, to harry)

to niggle [niggled|niggled] {v.t.} (also: to bump, to annoy, to irritate, to miff)

I have to remark that the end result is still a long way from the stated objectives and that the niggling issues have been brushed aside.