«Bleach and other cleaning agents can dull the finish of a ring and actually harm porous colored gemstones like emeralds.» (brides.com)
This trendy nail lacquer has a distinctive dull finish that's much desired by designers trying to create the perfect runway look. (myntra.com)
Wet mops and steam mops should be avoided because excessive water and steam can dull the finish over time, or even damage the wood itself. (woodfloors.org)