Abstract: The goal of this work became the identification of similarities and differences of peripheral conceptual attributes of clemency in the English and Russian languages. The subject of this research is the semantics of English and Russian lexemes representing the notional component of the concept of clemency in the compared languages, placed in the core and on the periphery of the concept. The concept of clemency was selected due to insufficient study of its verbalization in comparative linguistics. On the materials of lexicographic sources, the author determines the composition of nuclear lexemes and their synonyms that are capable of reflecting peripheral conceptual attributes of clemency in the English and Russian languages. The scientific novelty of this research consists in the fact that it is first to establish similarities and differences of peripheral conceptual attributes of clemency in the English and Russian languages. It is determined that core of the concept in English language is binominal and represented by the lexemes clemency and pardon; while in Russian language it is monomial. In conclusion, the author reveals that on the periphery of the concept in question in the English language are the lexemes grace, oblivion, allowance, indulgence, leniency, which are the synonyms of nuclear lexemes; and in the Russian language, there are  fewer synonyms of nuclear lexeme – apology, mercy, grace, remission. Comparison of the composition of peripheral conceptual attributes of clemency in the English and Russian languages demonstrated that they differ for the most part. Thus, the peripheral conceptual attributes of clemency in the English language is the comprehension of forgiveness as leniency with regards to a human being who committed the transgression, as a punishment, but in mitigated form. In the Russian language, the understanding of forgiveness as condescension to the transgression and aiding the one who transgressed.