undisclosed - concealed, hidden, not made known⏎
unique - special, unusual, inimitable, one of a kind⏎
salvage - restore, save (from being destroyed)⏎
retrieve - find, recoup, get something back⏎
unskilled - untrained, unqualified, inexpert⏎
saturate - drench, overproduce, over supply⏎
strapline - slogan⏎
walkout - strike (by workers), fail in duty⏎
simulate - imitate, create artificially⏎
seek - pursue, look for, search, try to obtain⏎