Roget's Thesaurus

#843. Dullness

Nouns

dullness, heaviness, flatness; infestivity etc. 837, stupidity etc. 499; want of originality; dearth of ideas. prose, matter of fact; heavy book, conte a dormir debout [Fr.]; platitude.

Verbs

be dull etc. adj.; prose, take au serieux [Fr.], be caught napping. render dull etc. adj.; damp, depress, throw cold water on, lay a wet blanket on; fall flat upon the ear. no joke, serious matter (importance) 642.

Adjectives

dull, dull as ditch water; unentertaining, uninteresting, flat, dry as dust; unfunny, unlively, logy [U.S.]; unimaginative; insulse; dry as dust; prosy, prosing, prosaic; matter of fact, commonplace, pedestrian, pointless; weary stale flat and unprofitable [Hamlet]. stupid, slow, flat, insipid, vapid, humdrum, monotonous; melancholic etc. 837; stolid etc. 499; plodding. boring, tiresome, tedious etc. 841.

Phrases

davus sum non Aedipus; deadly dull and boring, DDB.