progress Antonyms

regress retrogress subside suppurate suspend swooping systole taper terminate subsiding submergence stoppage stop stillstand sternway standstill stall stalemate stagnation tipping toboggan tobogganing go down turnaround turnabout retroflection climb-down abridgement worsen wizen wither weaken waterfall washtub wane tumble truncation topple toppling stagnate squash spread-eagle reverting reverted reversionary reversion reverse reversal return retrusion