LACKLUSTRE

adj. drab, dull, lustreless, flat, dingy, colourless, dismal, dreary, unexciting, boring, prosaic, tiresome, tedious, wearisome, uninteresting, two-dimensional, insipid, vapid, bland, unimaginative, thick, slow, dense, Colloq wishy-washy, blah He gave a very lacklustre performance as Shylock She has been leading a lacklustre life since John left.