[ re-troh-grey-dey-shuh n ]
/ ˌrɛ troʊ greɪˈdeɪ ʃən /
decline or deterioration.
Origin of retrogradation
Related formsret·ro·gra·da·to·ry [re-truh-grey-duh-tawr-ee, -tohr-ee] /ˌrɛ trəˈgreɪ dəˌtɔr i, -ˌtoʊr i/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for retrogradation
The benefit is not so generously bestowed, where there is retrogradation and reflection.The Essays of Montaigne, Complete|Michel de Montaigne
The arc of retrogradation is the angular distance thus apparently traversed.The Sailor's Word-Book|William Henry Smyth
In truth, however, the retrogradation was much slighter than appeared on the surface.