noun, noun which may take the genitive case particle 'no'
pre-existing; conventional; existing
Refers to something that has been in place from before, as opposed to something newly introduced. Often used in contrast with 新 (new) or 外来 (foreign/imported).
Replace the existing system with a new one.
この地域では在来の品種が今も栽培されている。
Conventional varieties are still cultivated in this region.
It's difficult to solve this problem with conventional technology.