Entry 3 senses · 2 variants Webster, 1913 Niggling · Nig·gling · IPA a. n. 01 a. petty, trivial, or inconsequential. 1. petty, trivial, or inconsequential. 2. Excessively demanding of time or attention; as, niggling little details. 02 n. Finicky or pottering work; 1. Finicky or pottering work;(Fine Arts)