This article is dedicated to semantic compatibility of the denominative relative clause "in the spirit" and its construction. The relevance of this research consists in the need for comprehensive analysis of such lexical units that are refereed to as functional words, however, have the characteristics of the nominal. The object of this research is the denominative relative clause "in the spirit". The subject is determination of the construction of this relative clause and its semantic compatibility with other linguistic units. The article aims to reveal the semantic and constructive peculiarities of the denominative relative clause “in the spirit” leaning on the analyzed linguistic material. Detailed description is given to the two-term construction of the relative clause "in the spirit", its right and left components. This study explains the semantic component of the relative clause "in the spirit", which reflects the relations of similarity, correspondence, or singularity. This article is first to examine the denominative relative clause "in the spirit" form the perspective of semantic compatibility and construction, which determines the scientific novelty. The denominative relative clause “in the spirit" usually expresses semantics that describes the correspondence of object, action, event or phenomenon to certain characteristics. Context analysis demonstrates that the relative clause forms a two-term construction with the left and right component. The lexical-semantic composition of the right and left components can be expressed in a variety of lexical ways. The left component of the relative clause "in the spirit" for the most part is represented by verbal lexicon, while the right component – by nominal lexicon. The conclusion is made that the signs described in the semantic structure of the relative clause “in the spirit” have direct and indirect methods of characterization. The indirect method lies in reference to the phenomenon, event, or historical fact; while the direct method of characterization is not attributed to a particular event.