n. | 1. | A lack of luster. |
a. | 1. | Wanting luster or brightness. |
2. | Lacking spirit, liveliness, or enthusiasm; dull. | |
3. | Mediocre; |
Adj. | 1. | lackluster - lacking brilliance or vitality; "a dull lackluster life"; "a lusterless performance" |
2. | lackluster - lacking luster or shine; "staring with lackluster eyes"; "lusterless hair" |