LONGTIME definition: existing, occurring, or continuing for a long period of time; longstanding. See examples of longtime used in a sentence.
Add to word list having existed or lasted for many years: a longtime friend (Definition of longtime from the Cambridge Academic Content Dictionary © Cambridge University Press)
longtime (comparative more longtime, superlative most longtime) Having endured for a long period of time. My longtime friend, since birth actually, called and gently broke the bad news to …
Definition of longtime adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
longtime in American English (ˈlɔŋˌtaim, ˈlɑŋ-) adjective existing, occurring, or continuing for a long period of time; longstanding
Longtime typically refers to something, such as a situation, relationship, or condition, that has been in existence or occurrence for a considerable length or period of time.