niegrzecznie
Niegrzecznie is a Polish adverb meaning “rudely” or “improperly,” used to describe behavior that violates norms of politeness. It modifies verbs to indicate how an action is performed and can refer to both children and adults. It is not typically used to label a person as a whole; for that purpose the related adjective niegrzeczny or a noun such as niegrzeczność is used.
The term is formed from grzeczny (polite, well-behaved) with the negating prefix nie- and the adverbial suffix
In use, niegrzecznie describes actions or speech rather than a fixed personal trait. It appears in both