What does "retrogression" mean?

A deterioration or decline to a previous state.

What is a synonym for "retrogression"?

Common synonyms include: regress, regression, reversion, about face, about-face, advance.

noun

noun ·Moderate ·High school level

Noun

1
A deterioration or decline to a previous state. countable, uncountable
"History and experience, the enshriners of the past, and investigation, the discoverer of the present and preparer for the future, will prevent retrogression."
2
returning to a former state wordnet
3
A return to a less complex condition. countable, uncountable
4
passing from a more complex to a simpler biological form wordnet

"Technological retrogression will be unlikely."