The meaning of NITTY is full of or infested with nits.

nitty in American English (ˈnɪti) adjective Word forms: -tier, -tiest full of nits

nitty, adj.¹ meanings, etymology, pronunciation and more in the Oxford English Dictionary

Oct 8, 2025 · nitty (comparative nittier or more nitty, superlative nittiest or most nitty) (Excessively) detailed or specific; fastidious, fussy, nit-picky. synonym quotations

nitty (ˈnɪtɪ) adj, -tier or -tiest informal foolish; stupid [C20: from nitwit]

Characterized by focusing on or being excessively concerned with minor details. The term "nitty" is often used as an informal or colloquial adjective, primarily in the context of the phrase "nitty …

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