treintañero

== Spanish == === Etymology === From treinta (“thirty”) +‎ año (“year”) +‎ -ero. === Noun === treintañero m (plural treintañeros, feminine treintañera, feminine plural treintañeras) thirtysomething === Further reading === “treintañero”, 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