[ re-truh-gres, re-truh-gres ]
/ ˌrɛ trəˈgrɛs, ˈrɛ trəˌgrɛs /

verb (used without object)

to go backward into an earlier and usually worse condition: to retrogress to infantilism.
to move backward.

Origin of retrogress

1810–20; < Latin retrōgressus past participle of retrōgradī to go back or backward, equivalent to retrō- retro- + gred-, combining form of gradī to step, go (see grade) + -tus past participle suffix, with dt > ss Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for retrogress

British Dictionary definitions for retrogress

/ (ˌrɛtrəʊˈɡrɛs) /

verb (intr)

to go back to an earlier, esp worse, condition; degenerate or deteriorate
to move backwards; recede
biology to develop characteristics or features of lower or simpler organisms; degenerate

Derived forms of retrogress

retrogression, nounretrogressive, adjectiveretrogressively, adverb

Word Origin for retrogress

C19: from Latin retrōgressus having moved backwards, from retrōgradī; see retrograde
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012