May 12, 2026 · The meaning of DRAB is characterized by dullness and monotony : cheerless. How to use drab in a sentence. boring, especially in appearance; having little colour and excitement: 2. To consort with prostitutes: "Even amid his drabbing, he himself retained some virginal airs" (Stanislaus Joyce). [Possibly of Celtic origin (akin to Scottish Gaelic dràbag Irish Gaelic drabóg, slattern) or from … If you describe something as drab, you think that it is dull and boring to look at or experience. ...his drab little office. Definition of drab adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. DRAB definition: dull; cheerless; lacking in spirit, brightness, etc. See examples of drab used in a sentence.