The problem of the definition of the term “syncretism” is considered, its differential features are identified, the causes of its occurrence are established. This phenomenon is studied on the syntactic tier of the language at the level of complex sentences; possible types of combining meanings within the subordinate clauses are defined as belonging to one structural-semantic type, the conclusion of the frequency of syncretic formations in contemporary artistic discourses, which is due to the effect of a common linguistic tendency towards the realization of a non-differentiated connection is made.