- lacklustre
- Synonyms and related words:blah, bland, boring, colorless, dense, dingy, dismal, drab, dreary, dull, flat, insipid, prosaic, slow, tedious, thick, tiresome, two-dimensional, unexciting, unimaginative, uninteresting, vapid, wearisome, wishy-washy
Moby Thesaurus. Grady Ward. 1996.