no turning back (adjective) imperative: necessary
Sinonime: amend, change one's mind, consider again, correct, emend, go over, have second thoughts, polish, rearrange, reassess, recheck, reexamine, rehash, replan, rethink, retrace, review, revise, reweigh, rework, run through, see in a new light, sleep on, take another look, think better of, think over, think twice, work over
Antonime: inessential, optional,
secondary,
unnecessary,
voluntary