Translation of "long-lost" - English-Russian dictionary

long-lost

adjective uk us /ˈlɒŋˌlɒst/
long-lost friend/cousin, etc

a friend or relative that you have not seen for a long time

давно пропавший друг/кузен и т. д.

(Translation of “long-lost” from the Cambridge English–Russian Dictionary © Cambridge University Press)