regressing

Synonyms for regressing: reverting, retrogressing, backsliding, relapsing, declining, deteriorating.

Definitions

Returning to a former or less developed state.

Moving backward or reverting to an earlier stage of behavior or development.

The patient's condition started regressing after he stopped taking his prescribed medication.

Instead of moving forward with the project, the team seems to be regressing to their old, inefficient habits.

The child began regressing in his speech development after the stressful move to a new city.