adj 1: (informal) 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"; "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" [syn: fiddling, footling, lilliputian, little, niggling, piddling, piffling, petty, picayune, trivial]
Niggle Nig"gle, v. t. [imp. & p. p. Niggled; p. pr. & vb. n. Niggling.] [Dim. of Prov. E. nig to clip money; cf. also Prov. E. nig a small piece.] To trifle with; to deceive; to mock. [Obs.] --Beau. & Fl.
A niggling injury or worry is small but bothers you over a long period of time. Both players have been suffering from niggling injuries....a niggling worry that the cheap car is also the one that will cause endless trouble.ADJ: usu ADJ n