Kietasis
Kietasis is a term in Lithuanian grammar describing the masculine singular definite form of the adjective kietas, meaning "hard" or "solid." In Lithuanian, adjectives can take definite forms to indicate that the noun they modify is specific or has been previously identified; kietasis is the form used with masculine singular nouns in nominative position.
Usage examples illustrate its function. For instance, kietasis akmuo means "the hard stone," and kietasis pastatas
Kietasis is primarily a grammatical form and not a separate lexical entry with an independent meaning beyond