| UNDERDRAIN | • underdrain n. An underground drain or trench with openings through which the water may percolate from the soil or ground above. • underdrain v. (Transitive) To drain by forming an underdrain or underdrains in. • UNDERDRAIN v. to drain by deep underground ditches. | 
| UNDERDRAINAGE | • underdrainage n. Insufficient drainage. • UNDERDRAINAGE n. insufficient drainage. | 
| UNDERDRAINAGES | • UNDERDRAINAGE n. insufficient drainage. | 
| UNDERDRAINED | • underdrained v. Simple past tense and past participle of underdrain. • UNDERDRAIN v. to drain by deep underground ditches. | 
| UNDERDRAINING | • underdraining v. Present participle of underdrain. • UNDERDRAIN v. to drain by deep underground ditches. | 
| UNDERDRAINS | • underdrains n. Plural of underdrain. • underdrains v. Third-person singular simple present indicative form of underdrain. • UNDERDRAIN v. to drain by deep underground ditches. | 
| UNDERDRAW | • underdraw v. (Transitive) To cover or line the underside of (a floor or roof) with plasterwork, boarding or other such treatment. • underdraw v. (Transitive) To represent inadequately in an artistic depiction, or in words. • UNDERDRAW v. to draw or describe with moderation or reticence. | 
| UNDERDRAWERS | • underdrawers n. (Dated) underwear; undergarments. • UNDERDRAWERS n. an article of underwear for the lower body. | 
| UNDERDRAWING | • underdrawing n. (Art) A sketch done on the ground of a painting before paint is applied. • UNDERDRAWING n. the act of underdrawing. | 
| UNDERDRAWINGS | • underdrawings n. Plural of underdrawing. • UNDERDRAWING n. the act of underdrawing. | 
| UNDERDRAWN | • underdrawn v. Past participle of underdraw. • UNDERDRAW v. to draw or describe with moderation or reticence. | 
| UNDERDRAWS | • underdraws v. Third-person singular simple present indicative form of underdraw. • UNDERDRAW v. to draw or describe with moderation or reticence. |