multitudinario - very crowdedSpanish example: Miles de personas asisten a la misa multitudinaria que oficia Benedicto XVI en Munich.
English example: Thousands of people attended the crowded mass that Benedict XVI officiated in Munich.
Source: multitudinario - very crowded (https://www.123teachme.com/spanish_feeds/word_of_the_day/2022/12/21)