zenith - summit, top, peak⏎
voluntary - uncharged (fee), offered, done willingly⏎
theory - idea, opinion, supposition⏎
satisfactory - acceptable, sufficient, good enough⏎
salary - wages, pay, earnings⏎
unprofitable - uneconomic, unproductive, profitless⏎
role - function, position (of somebody)⏎
slash - reduce something by a large amount cut⏎
undisclosed - concealed, hidden, not made known⏎
unemployed - jobless, out of work, unused⏎