As nouns the difference between retrogression and regression
is that
retrogression is a deterioration or decline to a previous state while
regression is an action of regressing, a return to a previous state.
Other Comparisons: What's the difference?
retrogression English
Noun
( en noun)
A deterioration or decline to a previous state.
* 1849 , Hogg's Weekly Instructor (page 388)
 History and experience, the enshriners of the past, and investigation, the discoverer of the present and preparer for the future, will prevent retrogression .
*'>citation
(biology) A return to a less complex condition.
Related terms
*retrogressive

regression Noun
( en noun)
An action of regressing, a return to a previous state.
* 1899: Thorstein Veblen, The Theory of the Leisure Class
 Few of these groups or communities that are classed as "savage" show no traces of regression from a more advanced cultural stage.
(psychotherapy) A psychotherapeutic method whereby healing is facilitated by inducing the patient to act out behaviour typical of an earlier developmental stage.
(statistics) An analytic method to measure the association of one or more independent variables with a dependent variable.
(statistics) An equation using specified and associated data for two or more variables such that one variable can be estimated from the remaining variable(s).
(programming) The reappearance of a bug in a piece of software that had previously been fixed.
Antonyms
* progression
Derived terms
* linear regression
* regression to the mean
* regression testing (computing)
* regression therapy (psychotherapy)
