made improvement (verb) polish: improve performance, look
Sinonime: ash, ashen, cinereal, clouded, dappled, dingy, dove, drab, dusky, dusty, grey, heather, iron, lead, leaden, livid, mousy, neutral, oyster, pearly, peppery, powder, sere, shaded, silvered, silvery, slate, smoky, somber, stone
Antonime: deface,
ruin,
spoil