Definition of niggly in English:

niggly

adjective

  • 1Causing slight but persistent discomfort or anxiety.

    ‘he has had a niggly injury which he is now over’
    ‘a niggly worry’
  • 2Denoting or engaging in trivial or irritating criticism.

    ‘we get very niggly with each other’
    ‘the group faced some niggly questioning’

Pronunciation

niggly

/ˈnɪɡli/