Nonrealistic refers to something that is not realistic or not based on reality. There are several synonyms for the word nonrealistic, such as unrealistic, imaginary, fanciful, idealistic, unpractical, impractical, dreamy, fantastic, fantastical, and utopian. These words refer to something that is not grounded in reality and may be based on imagination or ideals. Unpractical and impractical may also imply that the idea or concept is not feasible or not suitable for practical use. Synonyms for nonrealistic can be used in a variety of contexts, such as literature, art, and philosophy, to describe ideas or concepts that are not based on reality and may be based on imagination or ideals.