| DECOMPOUNDED | • decompounded v. Simple past tense and past participle of decompound. • DECOMPOUND v. to decompose, decay. |
| DEDUPLICATED | • deduplicated v. Simple past tense and past participle of deduplicate. • DEDUPLICATE v. to remove (duplicated material) from a system. |
| DEFEUDALISED | • defeudalised v. Simple past tense and past participle of defeudalise. • DEFEUDALISE v. to deprive of feudal character, also DEFEUDALIZE. |
| DEFEUDALIZED | • defeudalized v. Simple past tense and past participle of defeudalize. • DEFEUDALIZE v. to deprive of feudal character, also DEFEUDALISE. |
| DEHUMIDIFIED | • dehumidified v. Simple past tense and past participle of dehumidify. • DEHUMIDIFY v. to remove moisture from (as air). |
| DOUBLEHANDED | • doublehanded adj. (Sailing) Requiring or using a crew consisting of two people. • doublehanded adj. Alternative form of double-handed. • doublehanded adv. With two hands. |
| DUMFOUNDERED | • dumfoundered v. Simple past tense and past participle of dumfounder. • DUMFOUNDER v. to strike dumb; to confuse with astonishment, also DUMBFOUND, DUMBFOUNDER, DUMFOUND. |
| DUNDERHEADED | • dunderheaded adj. Stupid, foolish. • dunder-headed adj. Alternative form of dunderheaded. • DUNDERHEADED adj. of or like a dunderhead. |
| EISTEDDFODAU | • eisteddfodau n. Plural of eisteddfod. • EISTEDDFOD n. (Welsh) an annual assembly of Welsh poets and musicians. |
| MUDDLEHEADED | • muddleheaded adj. Alternative form of muddle-headed. • muddle-headed adj. Characterized by vague or confused thinking: foolish, dull-witted, semi-conscious. • MUDDLEHEADED adj. mentally confused. |
| UNDERBIDDERS | • underbidders n. Plural of underbidder. • UNDERBIDDER n. one who underbids. |
| UNDERDRAINED | • underdrained v. Simple past tense and past participle of underdrain. • UNDERDRAIN v. to drain by deep underground ditches. |
| UNDERDRESSED | • underdressed adj. Insufficiently dressed, as for cold weather. • underdressed adj. Insufficiently well-dressed, as for a formal event. • underdressed v. Simple past tense and past participle of underdress. |
| UNDERSTANDED | • understanded v. (Obsolete) simple past tense and past participle of understand. • UNDERSTAND v. to grasp the meaning of. |
| UNDERSTUDIED | • understudied adj. Insufficiently studied. • understudied v. Simple past tense and past participle of understudy. • UNDERSTUDY v. to act another's part or take over another's duties. |
| UNDISORDERED | • undisordered adj. Not disordered. • UNDISORDERED adj. not disordered. |