| DOUGHNUTTED | • DOUGHNUT v. to surround a speaker to give the impression of a packed house, also DONUT. | 
| DUMBFOUNDED | • dumbfounded adj. Shocked and speechless. • dumbfounded v. Simple past tense and past participle of dumbfound.
 • DUMBFOUND v. to strike dumb; to confuse with astonishment, also DUMBFOUNDER, DUMFOUND, DUMFOUNDER.
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| DUMBFOUNDER | • dumbfounder v. (Transitive) To dumbfound. • dumbfounder n. Someone who or that which dumbfounds.
 • DUMBFOUNDER v. to strike dumb; to confuse with astonishment, also DUMBFOUND, DUMFOUND, DUMFOUNDER.
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| DUMFOUNDERS | • dumfounders v. Third-person singular simple present indicative form of dumfounder. • DUMFOUNDER v. to strike dumb; to confuse with astonishment, also DUMBFOUND, DUMBFOUNDER, DUMFOUND.
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| HUMDUDGEONS | • humdudgeons n. Plural of humdudgeon. • HUMDUDGEON n. (Scots) low spirits.
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| INDECIDUOUS | • indeciduous adj. Not deciduous; evergreen; permanent; perennial. • INDECIDUOUS adj. not deciduous.
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| UNBOUNDEDLY | • unboundedly adv. Boundlessly. • UNBOUNDED adv. not bounded.
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| UNCLOUDEDLY | • uncloudedly adv. In an unclouded way; without clouds or mental obstructions. • UNCLOUDED adv. UNCLOUD, to free from clouds.
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| UNCUCKOLDED | • uncuckolded adj. Not cuckolded. • uncuckolded v. Simple past tense and past participle of uncuckold.
 • UNCUCKOLDED adj. not cuckolded.
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| UNDERGROUND | • underground adj. (Not comparable) Below the ground; below the surface of the Earth. • underground adj. (Figurative) Hidden, furtive, secretive.
 • underground adj. (Of music, art &c.) Outside the mainstream, especially unofficial and hidden from the authorities.
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| UNDERQUOTED | • underquoted v. Simple past tense and past participle of underquote. • UNDERQUOTE v. to offer at a price lower than.
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| UNDOUBTEDLY | • undoubtedly adv. Without doubt; definitely. • UNDOUBTED adv. not doubted.
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| UNFOUNDEDLY | • unfoundedly adv. In an unfounded way; without basis. • UNFOUNDED adv. not founded.
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| UNGUERDONED | • unguerdoned adj. Not guerdoned. • UNGUERDONED adj. not guerdoned.
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| UNHIDEBOUND | • unhidebound adj. Not hidebound. • UNHIDEBOUND adj. (Milton) not having a skin confining the body.
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| UNMODULATED | • unmodulated adj. Not modulated. • UNMODULATED adj. not modulated.
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