1. lacking shine, brightness, or luster; dull
2. lacking liveliness, energy, or interest; spiritless
Usage: figurative

Examples

• The old painting had a lustreless surface after years of dust accumulation.
• Her eyes looked lustreless and tired after the long illness.
• The lustreless metal needed polishing to restore its shine.
• His lustreless performance on stage disappointed the audience.
• The lustreless finish on the ceramic bowl gave it a modern aesthetic.
• After weeks of stress, she felt lustreless and unmotivated.