| Answer | Crossword Clue |
|---|---|
| flattest | Lacking interest or emotion; dull and lifeless |
| monotonous | Dull, tedious, and repetitious; lacking in variety and interest |
| insipid | lacking interest or color; dull |
| drabber | Lacking brightness or interest; drearily dull |
| colorless | Lacking distinctive character or interest; dull |
| drabbest | Lacking brightness or interest; drearily dull |
