| BELOWGROUND | • belowground adj. Beneath the surface of the ground; underground. • below␣ground phr. Alternative form of belowground. • BELOWGROUND adv. underground. |
| BUILDDOWN | • builddown n. A systematic, gradual reduction in the number of something (especially nuclear weapons), normally by… • build␣down v. (Card games) In solitaire card games, to place a card over another card of higher value (e.g. 4♦ over 5♣). • BUILDDOWN n. a planned reduction. |
| BUILDDOWNS | • builddowns n. Plural of builddown. • BUILDDOWN n. a planned reduction. |
| BUNDWALL | • BUNDWALL n. a concrete or earth wall surrounding a storage tank containing crude oil. |
| BUNDWALLS | • BUNDWALL n. a concrete or earth wall surrounding a storage tank containing crude oil. |
| TUMBLEDOWN | • tumbledown adj. In disrepair; poorly maintained. • tumble␣down v. (Intransitive, figuratively) To topple, collapse. • TUMBLEDOWN adj. dilapidated. |
| ULTRAWIDEBAND | • ultrawideband adj. Describing a radio technology that uses a large portion of the radio spectrum. • ULTRAWIDEBAND n. a very broad bandwidth. |
| ULTRAWIDEBANDS | • ULTRAWIDEBAND n. a very broad bandwidth. |
| UNBEWAILED | • unbewailed adj. Not bewailed. • UNBEWAILED adj. not bewailed. |
| UNBLOWED | • unblowed adj. (Obsolete) Not having blossomed. • UNBLOWED adj. (Shakespeare) not blown, still in the bud, also UNBLOWN. |
| UNBOWDLERISED | • UNBOWDLERISED adj. not bowdlerised, also UNBOWDLERIZED. |
| UNBOWDLERIZED | • unbowdlerized adj. Not bowdlerized. • UNBOWDLERIZED adj. not bowdlerized, also UNBOWDLERISED. |
| UNKNOWLEDGEABLE | • unknowledgeable adj. Lacking knowledge, ignorant, naive, or foolish. • UNKNOWLEDGEABLE adj. not knowledgeable. |
| UNPUTDOWNABLE | • unputdownable adj. Of a person, etc.: difficult or impossible to put down (in various senses). • unputdownable adj. (Specifically) Of a book or other written work: so captivating or engrossing that one cannot bear to stop reading it. • un-put-downable adj. Alternative form of unputdownable. |
| UNSHADOWABLE | • unshadowable adj. Not shadowable. • UNSHADOWABLE adj. that cannot be shadowed. |
| UNWEDGABLE | • UNWEDGABLE adj. (Shakespeare) that cannot be split into wedges, also UNWEDGEABLE. |
| UNWEDGEABLE | • unwedgeable adj. That cannot be split, as with a wedge. • UNWEDGEABLE adj. that cannot be split into wedges, also UNWEDGABLE. |
| UNWINDABLE | • unwindable adj. Not windable. • unwindable adj. Able to be unwound. • UNWINDABLE adj. that can be unwound. |
| UNWOUNDABLE | • unwoundable adj. Incapable of being wounded. • UNWOUNDABLE adj. not woundable. |
| WOUNDABLE | • woundable adj. Capable of being wounded; vulnerable. • WOUNDABLE adj. capable of being wounded. |