Is Niggle a Real Word

bad-tempered, especially about trivial details.

Is niggly a real word?

bad-tempered, especially about trivial details.

What is a Nigle?

(Australia, pejorative, usually restricted to youths) A person, usually male, who is unpopular with their peers, unfashionable, socially awkward and/or introverted. He’s such a Nigel: Hangs around in the library all day, by himself. noun. 2.