gloaming (n.)

• brownness
• candlelight
• crepuscule
• deadness
• dim
• dimness
• drabness
• dullness
• dusk
• duskiness
• eventide
• flatness
• gloam
• half-light
• lifelessness
• lusterlessness
• mat
• murk
• murkiness
• nightfall
• somberness
• twilight