long–term 
/ˈlɑ:ŋˈtɚm/ adjective
/ˈlɑ:ŋˈtɚm/ adjective : lasting for, relating to, or involving a long period of time
▪ The long-term effects of the medication are not known. ▪ The company has a long-term plan/strategy for success. ▪ His long-term memory is still okay, but his short-term memory is failing. [=he is still able to remember things that happened long ago but it is difficult for him to remember things that happened recently] ▪ long-term care for the elderly ▪ a long-term investment
▪ The long-term effects of the medication are not known. ▪ The company has a long-term plan/strategy for success. ▪ His long-term memory is still okay, but his short-term memory is failing. [=he is still able to remember things that happened long ago but it is difficult for him to remember things that happened recently] ▪ long-term care for the elderly ▪ a long-term investment
