Englishobsolescent
adjective
industries regarded by policy makers as obsolescent:
dying out, becoming obsolete, going out of use, going out of fashion, on the decline, declining, waning, on the wane, disappearing, past its prime, ageing, moribund, on its last legs, out of date, outdated, old-fashioned, outmoded;
informal on the way out, past it.
obsolescent Oxford Dictionary of English