- 1
Lacking brilliance or intelligence.US
- 2
Having no shine or luster; dull.US
- A faded, and an ancient dragon he was; and many a wintry storm of rain, snow, sleet, and hail, had changed his colour from a gaudy blue to a faint lack-lustre shade of gray.
- He sat looking at her with lack-lustre eyes. The light suddenly came back into them.
- 3
Not exceptional; not worthy of special merit, attention, or interest; having no vitality.USfiguratively
- The actor gave a lackluster performance in his latest film.
syn. pallid