dull Synonyms

tedious sluggish obtuse boring stupid blunt dim muffled lifeless irksome lackluster slow dismal damp flat uninteresting drab insipid clouded muted dense leaden dampen dead gray numb tiresome dumb heavy wearisome dreary tiring stuffy stolid stultify toneless soften tame toothless stodgy torpid stifled stifle trite tire tinny tawdry tarnish tarnished thudding