Cristate is a rare and specific word that refers to something that is crested or in the shape of a crest. Some synonyms for this word include crested, top-knotted, tufted, or crowned. These words all describe something that has a distinctive protrusion or crest on top. Another synonym for cristate is lobed, which describes a structure with rounded or pointed projections that resemble the shape of a crest. While not commonly used in everyday language, cristate and its synonyms can be found in scientific and botanical contexts to describe certain types of growth patterns or formations in organisms.