1. (a.) Capable of being improved; susceptible of improvement; admitting of being made better; capable of cultivation, or of being advanced in good qualities.

2. (a.) Capable of being used to advantage; profitable; serviceable; advantageous.

ameliorable amendable correctable corrigible curable emendable fixable medicable mendable perfectible reclaimable recoverable rectifiable recyclable redeemable remediable repairable reparable restorable retrievable reversible