| Word | Definitions | Synonyms |
|---|---|---|
| regressive | (adjective) opposing progress; returning to a former less advanced state | - |
| (adjective) (of taxes) adjusted so that the rate decreases as the amount of income increases | - | |
| regretful | (adjective) feeling or expressing regret or sorrow or a sense of loss over something done or undone | Synonyms: bad, sorry |
| regrettable | (adjective) deserving regret | Synonyms: too bad |