'Lackluster' definitions:

Definition of 'lackluster'

From: WordNet
adjective
Lacking brilliance or vitality; "a dull lackluster life"; "a lusterless performance" [syn: lackluster, lacklustre, lusterless, lustreless]
adjective
Lacking luster or shine; "staring with lackluster eyes"; "lusterless hair" [syn: lackluster, lacklustre, lusterless, lustreless]

Definition of 'Lackluster'

From: GCIDE
  • Lackluster \Lack"lus`ter\, Lacklustre \Lack"lus`tre\, n. A lack of luster. [1913 Webster] Lackluster

Definition of 'Lackluster'

From: GCIDE
  • Lackluster \Lack"lus`ter\, Lacklustre \Lack"lus`tre\ a.
  • 1. Wanting luster or brightness. "Lackluster eye." --Shak. [1913 Webster]
  • 2. Lacking spirit, liveliness, or enthusiasm; dull. [PJC]
  • 3. Mediocre; as, a lackluster performance. [PJC]