| ASSIDUOUSLY | • assiduously adv. In an assiduous manner; diligently, industriously. • ASSIDUOUS adv. diligent; persistent. |
| AUDACIOUSLY | • audaciously adv. In a audacious manner; bravely, daringly, but not foolheartedly. • audaciously adv. In a brazen, forthright manner. • AUDACIOUS adv. bold, also OUTDACIOUS. |
| AUDIOVISUAL | • audiovisual adj. Containing both aural and visual elements. • audio-visual adj. Alternative form of audiovisual. • AUDIOVISUAL adj. relating to hearing and sight. |
| DRUNKALOGUE | • drunkalogue n. A tale of one’s drunken exploits. • DRUNKALOGUE n. an account of a person's problems with alcohol. |
| NUDICAULOUS | • NUDICAULOUS adj. having a leafless stem, also NUDICAUL. |
| OUTLAUNCHED | • outlaunched v. Simple past tense and past participle of outlaunch. • OUTLAUNCH v. to launch forth, also OUTLAUNCE. |
| QUADRUPOLES | • quadrupoles n. Plural of quadrupole. • QUADRUPOLE n. a system composed of two dipoles of equal but oppositely directed moment. |
| ULTRASOUNDS | • ultrasounds n. Plural of ultrasound. • ULTRASOUND n. vibrations of the same physical nature as sound but with frequencies above the range of human hearing. |
| UNCALLOUSED | • uncalloused adj. Not calloused. • uncalloused adj. (Figurative) Unaccustomed to work. • UNCALLOUSED adj. not calloused. |
| UNDOUBTABLE | • undoubtable adj. (Rare) Incapable of being doubted; undoubted; indubitable. • UNDOUBTABLE adj. that cannot be doubted. |
| UNDULATIONS | • undulations n. Plural of undulation. • UNDULATION n. a rising and falling in waves. |
| UNFLAVOURED | • unflavoured adj. Alternative spelling of unflavored. • UNFLAVOURED adj. not flavoured, also UNFLAVORED. |
| UNMODULATED | • unmodulated adj. Not modulated. • UNMODULATED adj. not modulated. |
| UNPOPULATED | • unpopulated adj. Uninhabited, having no residents. • unpopulated v. Simple past tense and past participle of unpopulate. • UNPOPULATED adj. not populated. |
| UNSOUNDABLE | • unsoundable adj. Impossible to sound; whose depth cannot be gauged. • UNSOUNDABLE adj. not soundable. |
| UNWOUNDABLE | • unwoundable adj. Incapable of being wounded. • UNWOUNDABLE adj. not woundable. |