The article concerns with the characteristic features of functioning of qualitatively defining "positive" adverbs-compilers in copywriting texts, which lead to a complication of semantic-syntactic structure and pragmatic content of advertising content and are expressed as the form of free distributors of sentences - determinants that serve as expressive-emotional means of author's intention. It has been determined that "attractive" qualitatively characterizing adverbs are generally considered integral component of the advertising text, which largely forms its stylistic originality. The use of original expressive techniques and various linguistic means by copywriters helps to create a "positive", figurative text, build content according to a certain structure and to form the main idea. Reference to new material, which was not the subject of special analysis, in our opinion, will allow us to obtain additional arguments in favour of qualifying qualitatively-characterizing compilators in the semantic-syntactic structure of positive copywriting texts as determinant members of a sentence.