tlustý

Tluste is a Czech adjective form meaning fat or thick. It is the neuter singular and the feminine plural form of the adjective tlustý, and it is used with nouns whose gender and number match those endings. For example, tlusté střevo (the large intestine) uses the neuter singular form, and tlusté knihy (thick books) uses the feminine plural form. The related masculine singular is tlustý, while the masculine plural is tlustí.

In terms of grammar, tlusté is one of several inflected forms of tlustý. The full paradigm includes tlustý (masculine singular), tlustá (feminine singular), tlusté (neuter singular; feminine plural), and tlustí (masculine plural). The exact form is determined by the gender and number of the noun it describes, as in tlusté auto (thick car, neuter), tlustá žena (fat woman, feminine singular), tlusté střevo (large intestine, neuter singular), and tlusté knihy (thick books, feminine plural).

Usage notes include the fact that tlustý can describe physical fat in people or the thickness of objects, and that applying it to people can carry negative connotations depending on context. In non-human or inanimate contexts, it is a neutral descriptive term.

Etymology: tlusté derives from the Czech adjective tlustý, which itself comes from Proto-Slavic roots related to thickness or density. Cognates exist in other Slavic languages, such as Polish tłusty and Russian tolstyj, with similar meanings.

See also: obesity and related descriptors in Czech, and cross-language cognates in Slavic languages.