adjective. lacking luster or shine.
adjective. lacking brilliance or vitality.
Sentences with lusterless
Glossy streaks stand out against a lusterless finish and make the walls look unattractive.
2. Noun, singular or mass
Opaque glass -- or slag glass -- is a lusterless, slightly translucent pressed glass that is colored and often swirled, and it may emit a milky glow when lit from within.