risk - danger, peril, chance, speculate⏎
unofficial - illegal, independent, unauthorised, unauthorized⏎
viable - possible, cost-effective, safe, can be done or achieved or used, likely to be successful⏎
tender - bid, offer⏎
segment - division, divide, part of something⏎
unskilled - untrained, unqualified, inexpert⏎
walkout - strike (by workers), fail in duty⏎
seller - vendor, trader⏎
wind-up - close down, liquidate, terminate, cease⏎