viable - possible, cost-effective, safe, can be done or achieved or used, likely to be successful⏎
responsibility - duty, onus⏎
stagnant - inert, undeveloping, unchanging, not growing⏎
semi - half, partly, incomplete⏎
train - teach, instruct, tutor, coach, mentor, educate, edify, nurture, develop, school, explain, impart (facts/information), prepare, prime, demonstrate, illustrate⏎
transfer - move over, carry, duplicate, displace⏎
unofficial - illegal, independent, unauthorised, unauthorized⏎
surplus - glut, superfluity, extra, more than is needed⏎
sound - reliable, sensible when making decisions, undamaged, good and thorough, in good condition⏎
revoke - cancel, not retain, end validity of⏎