| QUADRANGULAR | • quadrangular adj. Having the shape of a quadrangle; in the shape of a quadrangle. • QUADRANGULAR adj. like a quadrangle. |
| QUADRENNIUMS | • quadrenniums n. Plural of quadrennium. • QUADRENNIUM n. (Latin) a period of four years, also QUADRIENNIUM. |
| QUADRIENNIUM | • QUADRIENNIUM n. (Latin) a period of four years, also QUADRENNIUM. |
| QUADRUMANOUS | • quadrumanous adj. Having four feet whose first digits are opposable; applies to all non-human primates. • QUADRUMANOUS adj. of apes, etc., with all four feet adapted for use as hands. |
| QUINQUENNIAD | • quinquenniad n. (Now rare) Synonym of quinquennium: A 5-year period. • QUINQUENNIAD n. a period of five years, also QUINQUENNIUM. |
| UNACQUAINTED | • unacquainted adj. Not acquainted, unfamiliar (with someone or something). • unacquainted adj. (Obsolete) Not usual; unfamiliar; strange. • UNACQUAINTED adj. not acquainted. |
| UNDERQUOTING | • underquoting v. Present participle of underquote. • UNDERQUOTE v. to offer at a price lower than. |
| UNFREQUENTED | • unfrequented adj. Not frequented. • UNFREQUENTED adj. not often visited or traveled over. |
| UNLIQUIDATED | • unliquidated adj. (Law) Not liquidated; unascertained. • UNLIQUIDATED adj. not liquidated. |
| UNNILQUADIUM | • unnilquadium n. (Dated) rutherfordium. • UNNILQUADIUM n. a former name of the transuranic element rutherfordium. |
| UNQUANTIFIED | • unquantified adj. Not quantified (in any sense). • UNQUANTIFIED adj. not quantified. |
| UNQUESTIONED | • unquestioned adj. (Of a person) Not subjected to an interrogation. • unquestioned adj. (Of a fact) Accepted without question; indisputable. • UNQUESTIONED adj. not questioned. |
| UNREQUITEDLY | • unrequitedly adv. In an unrequited manner. • UNREQUITED adv. not requited. |
| UNVANQUISHED | • unvanquished adj. Not vanquished; unbeaten or unconquered. • UNVANQUISHED adj. not vanquished. |