| NONINDUSTRIAL | • nonindustrial adj. Not industrial. • nonindustrial adj. Of a geographic area, not designated for use by manufacturers and other industries; residential or commercial. • NONINDUSTRIAL adj. not industrial. | 
| NONREFUNDABLE | • nonrefundable adj. Not refundable; not able to be refunded. • non-refundable adj. Alternative form of nonrefundable. • NONREFUNDABLE adj. not subject to refunding or being refunded. | 
| UNCONSTRAINED | • unconstrained adj. Not constrained. • UNCONSTRAINED adj. not constrained. | 
| UNDERDRAINING | • underdraining v. Present participle of underdrain. • UNDERDRAIN v. to drain by deep underground ditches. | 
| UNDERFINANCED | • underfinanced adj. Lacking sufficient financing. • UNDERFINANCED adj. inadequately financed. | 
| UNDERMANNINGS | • UNDERMANNING n. the state of not having enough employees. | 
| UNDERMEANINGS | • undermeanings n. Plural of undermeaning. • UNDERMEANING n. a hidden meaning. | 
| UNDERPAINTING | • underpainting n. (Art) An initial layer of paint, often monochromatic, applied to a ground as a base for subsequent layers. • underpainting n. (Art) A painting that the artist later painted over to create the final work. • UNDERPAINTING n. preliminary painting. | 
| UNDERPLANTING | • underplanting v. Present participle of underplant. • underplanting n. An arrangement of underplants. • UNDERPLANT v. to plant smaller trees in between taller ones. | 
| UNDERSTANDING | • understanding n. (Gerund, uncountable) The act of one that understands or comprehends; comprehension; knowledge; discernment. • understanding n. (Countable) Reason or intelligence, ability to grasp the full meaning of knowledge, ability to infer. • understanding n. (Countable) Opinion, judgement or outlook. | 
| UNENDEARINGLY | • unendearingly adv. In an unendearing manner. | 
| UNENTERTAINED | • unentertained adj. Not entertained. • UNENTERTAINED adj. not entertained. | 
| UNLEARNEDNESS | • unlearnedness n. The state or condition of being unlearned; lack of education. • UNLEARNEDNESS n. the state of being unlearned. |