QUINQUENNIAL Meaning of QUINQUENNIAL in English transcription, транскрипция: [ kwɪŋˈkwenɪəl ]adj. 1 lasting five years. 2 recurring every five years. øøquinquennially adv. [L quinquennis (as QUINQUENNIUM)] English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012