niggler

nig·gle

N0101200 (nĭg′əl)v. nig·gled, nig·gling, nig·gles v.intr.1. To cause one to be persistently preoccupied, annoyed, or uncomfortable: Doubts niggled at the back of my mind.2. To pester someone or be annoying or uncomfortable in a persistent way: He niggled at me all day to lend him my car.3. To be overly concerned or argumentative, especially about something petty; fuss: niggled over contract details.v.tr.1. To preoccupy, annoy, make uncomfortable in a persistent way: Suspicions niggled him.2. To pester or nag (someone).

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[Perhaps of Scandinavian origin.]

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nig′gler n.

Thesaurus

Noun

1.

niggler - someone who constantly criticizes in a petty waycarpercritic - someone who frequently finds fault or makes harsh and unfair judgments

niggler

nounA person who finds fault, often severely and willfully:carper, caviler, critic, criticizer, faultfinder, hypercritic, nitpicker, quibbler.