The purpose of the article is to analyse the decorative and monumental works of the Ukrainian artist Fedir Tetianych, created in the 1970s, and to identify the traditions of the transavant-garde in their design and methodology. The research methods are based on the fundamental principles of art historical analysis with the involvement of interdisciplinary connections (psychology, cultural studies, and philosophy). The method of epistemological analysis is used in the process of clarifying the concepts of a number of art historical concepts, in particular, neo-expressionism, transavant-garde, mythopoetics. The systematic-analytical method is used to highlight the artistic and technological features of F. Tetianych's monumental works as an original example of the Ukrainian transavant-garde. The scientific novelty of the study is to identify the formative and compositional achievements of F. Tetianych's monumental works, which stylistically correspond to the traditions of the transavant-garde of the last third of the twentieth century. Conclusions. After analysing the monumental works of F. Tetianych, which were created in the 1970s, it can be argued that this period was important in the formation of both the philosophical and poetic doctrine of “Fripulia”, the author's original mythopoetics, and interesting techniques and methods of implementation, which involved the use of industrial and consumer waste. The described artistic and technical techniques and methods of F. Tetianych, who belonged to the representatives of the “unofficial” art of Ukraine, correspond to the traditions of the transavant-garde and are in tune with the style of many foreign artists of the last third of the twentieth century.
 Keywords: neo-expressionism, transavant-garde, mythopoetics, monumental art, techniques, methodology, research.