retrogressing
Definitions
Moving backward or returning to an earlier, less advanced, or inferior state.
Declining or deteriorating from a better condition to a worse one.
Examples
The team's performance has been retrogressing steadily since the star player suffered an injury.
Without consistent practice, the student's language skills are retrogressing to a beginner level.
Synonyms
declining regressing deteriorating backsliding reverting worsening receding
Antonyms
advancing progressing improving developing thriving flourishing growing