kept nose to grindstone (verb) keep one's nose to the grindstone: work doggedly
Sinonime: abandoned, castaway, castoff,
damaged,
deserted, discontinued, done with,
forsaken, junked,
neglected,
obsolete, out-of-date, outmoded, repudiated, run-down, scrapped, shelved, thrown away, thrown out,
useless, worn-out
Antonime: kept,
up-to-date,
worthwhile