nieprawidowe

Nieprawidłowe is an adjective in Polish meaning incorrect, improper, or faulty, and is used to describe things that do not conform to rules, standards, or truth. The standard spelling in Polish is nieprawidłowe, formed from the root prawidłowy with the negation prefix nie- and the feminine, neuter, and plural inflections. The form nieprawidłowe is used for neuter nouns and for plural references; masculine singular would be nieprawidłowy and feminine singular nieprawidłowa.

The word is widely used across domains to indicate errors or deviations: nieprawidłowe dane (incorrect data), nieprawidłowy wynik (faulty result), nieprawidłowe zachowanie systemu (improper system behavior). In legal or administrative language, nieprawidłowe decyzje or nieprawidłowe procedury may appear as evaluative descriptors. In science and mathematics, terms such as nieprawidłowe założenie (invalid assumption) or nieprawidłowy wynik are common, though more precise technical terms may be preferred in specialized contexts.

Nieprawidłowe is often contrasted with prawidłowe, meaning correct or proper, and with related forms such as nieprawidłowość (a noun denoting a fault, irregularity, or abnormality) and nieprawidłowo (adverb meaning incorrectly). A nonstandard or misspelled variant, nieprawidowe, occurs in informal writing or typographical errors, but in formal Polish the correct form is nieprawidłowe. As with many adjectives, the exact meaning can depend on context, ranging from simple mistakes to violations of rules or norms.