[1] : The Collaborative International Dictionary of English v.0.48

retrogress \re"trogress\, n. cf. l. retrogressus.
   retrogression. r. --h. spenser.
   1913 webster

[2] : WordNet (r) 2.0

retrogress
     v 1: get worse; fall back to a previous or worse condition syn:
          regress, retrograde ant: progress
     2: go back to bad behavior; "those who recidivate are often
        minor criminals" syn: relapse, lapse, recidivate, regress,
         fall back
see also:
regress retrograde progress relapse lapse recidivate 
fall back 

[3] : Moby Thesaurus II by Grady Ward, 1.0

78 moby thesaurus words for "retrogress":
   advance, ascend, back, back up, backslide, budge, change,
   change place, circle, climb, cock, come after, come last,
   degenerate, descend, deteriorate, disimprove, ebb, fall astern,
   fall back, fall behind, flow, follow, get behind, get over,
   get worse, go, go around, go back, go backwards, go behind,
   go round, go sideways, grow worse, gyrate, jerk back, lag behind,
   lapse, lapse back, let down, lose ground, mount, move, move over,
   plunge, progress, pull back, recede, recidivate, regress, relapse,
   retrocede, retroflex, retrograde, retrovert, return, reverse,
   revert, rise, rotate, run, shift, sicken, sink, slacken, slip back,
   soar, spin, stir, stream, subside, throw back, trail, trail behind,
   travel, wane, whirl, worsen

Retrogress >> R Words
Retrogress, definition of term: Retrogress
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