Adjectives are lexematic words, functioning at the three levels of linguistic competence. They form a category; they belong to particular languages; and they are elements of free use by speakers. As virtual they belong to the system of the language; as instruments of expression they belong to the norm of the language; and as instruments of communication they belong to discourse.
At the same time adjectives are predicates, the expression of a state of affairs provided with the instruments of relation and combination in a sentence or in a phrase.
This study analyses the potentialities of expression and interpretation of adjectives.