improves

advance better boost correct develop enhance help increase lift progress promote raise recover reform revamp revise rise upgrade

ameliorate amend augment civilize convalesce cultivate edit elevate emend meliorate mend polish purify rally rectify recuperate refine sharpen skyrocket update

come around doctor up gain ground look up make strides perk up pick up set right shape up straighten out take off touch up turn the corner

blow decline decrease demote depress descend deteriorate diminish drop halt hinder hurt lessen lose lower recede reduce repress retreat retrogress stop worsen

corrupt damage destroy dirty dull pollute ruin weaken

harm injure