绵绵不绝

Explanation: Refers to the continuous 　　Usage: Partial official; as predicate, attributive, adverbial; refers to continuous 　　Source: "Yi Zhou Shu and Wu": "endless, Man Man are?" 　　Examples: Is the Ching Ming Festival, indispensable to God seasonal, reminders Huayu, the next was that rain ~. ★ "Jingshitongyan White Snake Pagoda town forever." Thesaurus:  continuously or incessantly, (as) thick as hail, Continuum continuous, continue continuous Antonym Group:  unheard-of, peerless, unprecedented; have no precedent in history, never hear in past history, be never known before and never to occur again