serenísimo

== Spanish == === Adjective === serenísimo (feminine serenísima, masculine plural serenísimos, feminine plural serenísimas) superlative degree of sereno === Further reading === “serenísimo”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025