lacklustre russian
му́тный
turbid, dull, lacklustre, cloudy, muddy
ту́склый
dim, dull, dingy, wan, lacklustre, lustreless, tarnished, dreary
тума́нный
misty, foggy, fog, hazy, obscure, vague, lacklustre, lustreless
безжи́зненный
lifeless, inanimate, insipid, lacklustre