Eugeniu Coșeriu (1921-2002) was one of the most influential linguists of the twentieth century. On the occasion of his hundredth anniversary, different events have been held throughout the year of 2021. These included international fora, national and international symposia, hybrid-held lectures with online and offline attendance, just to name a few. Over the years, the “Intertext” journal of the Institute of Philological and Intercultural Research (ICFI) ULIM has published several materials dedicated to this far-reaching contemporary linguist. This article is also intended as a text to pay homage to the illustrious linguist. It deals with the subject so close to Coșeriu, namely that of lexical flexibility. In our case it is about the French lexicon that manifests itself through neologisms, formulas, new constructions, recently created in scientific centers, laboratories, technological centers (néologismes de langue). We pay special attention, however, to neologisms with a stylistic character and function (néologismes de la parole), which attract our attention both by their extraordinary form (forme à rebours) and by their strictly individual character. These units have their author and strict context: they belong as a creative act to writers and poets, journalists and screenwriters and are closely related to individual creativity and the character of the imagination of each subject. E. Coșeriu's linguistic vision in terms of lexical creativity, lexical and semantic neology helps us fully and objectively to decode the linguistic nature of the phenomenon.