The article is devoted to the analysis of word-formation processes in the language of the journalistic style of the early twenty-first century. It was found out that the press reflects contemporary general trends. It is established that mass media and the press are the main sources of updating and updating of the Ukrainian vocabulary, as mass media also undergoes radical modifications.The purpose of our research is to find out the notion of linguistic economy, the reasons for its occurrence, as well as how today journalists implement the compression process (reduction, reduction) at the lexical level, namely, the law of economy of language resources, which is found in search of more successful (short) linguistic constructions and that corresponds to modern media communication, which means simply and accessible to communicate the opinion to the recipient.The object of the study is complicated words in the mass media of the early twenty-first century. The subject of the study is the derivational and functional-stylistic features of complicated words in the language of the press of the early twenty-first century.For multivariate analysis of complicated words the following methods were used: descriptive, which enabled to reveal the formal signs of complicated words of the modern press, to study the factors of the creation of complicated units; component (for the description of semantics of complicated units) and functional (for distinguishing the functions of complicated words in the language of the press).Consequently, we can argue that complicated words are the result of reflecting the interaction of language, in particular its word-building system, with the peculiarities of development and the needs of Ukrainian society at the present stage of the rapid development of the information society, as well as against the background of economic and political changes in the state. Media and press releases, along with journalism and artistic literature, are the main source of renewal, enrichment and replenishment of the Ukrainian vocabulary with new words. Complicated words as economical in form nominating units are marked by significant semantic content. Thus, they are a frequent phenomenon in language and a wonderful expressive-figurative stylistic means. In the long run, we see the study of the derivational and stylistic features of complicated words that function in the language of the media.