| Adj. | 1. | niggling - (informal terms) small and of little importance; "a fiddling sum of money"; "a footling gesture"; "our worries are lilliputian compared with those of countries that are at war"; "a little (or small) matter"; "Mickey Mouse regulations"; "a dispute over niggling details"; "limited to petty enterprises"; "piffling efforts"; "giving a police officer a free meal may be against the law, but it seems to be a picayune infraction"colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech unimportant - not important; "a relatively unimportant feature of the system"; "the question seems unimportant" | |