| DESULPHURATED | • desulphurated v. Simple past tense and past participle of desulphurate. • DESULPHURATE v. to remove sulphur from. |
| OUTREPRODUCED | • outreproduced v. Simple past tense and past participle of outreproduce. • OUTREPRODUCE v. to surpass in reproducing. |
| SUBINTRODUCED | • SUBINTRODUCE v. to bring in surreptitiously or subtly. |
| THUNDERCLOUDS | • thunderclouds n. Plural of thundercloud. • thunder␣clouds n. Plural of thunder cloud. • THUNDERCLOUD n. a cloud charged with electricity and producing lightning and thunder. |
| UNADULTERATED | • unadulterated adj. Pure; not mixed or adulterated with anything. • unadulterated adj. Utter or out-and-out, especially in the phrase unadulterated truth. • UNADULTERATED adj. not adulterated, also UNADULTERATE. |
| UNDERBUDGETED | • underbudgeted v. Simple past tense and past participle of underbudget. • UNDERBUDGET v. to allow too low a budget. |
| UNDEREDUCATED | • undereducated adj. Insufficiently educated. • undereducated v. Simple past tense and past participle of undereducate. • under-educated adj. Alternative form of undereducated. |
| UNDERGRADUATE | • undergraduate n. A student at a university who has not yet received a degree. • undergraduate adj. Of, relating to, or being an undergraduate. • UNDERGRADUATE n. a student at a college or university who has not received a first and esp. a bachelor's degree. |
| UNDERSTUDYING | • understudying v. Present participle of understudy. • UNDERSTUDY v. to act another's part or take over another's duties. |
| UNDERTHRUSTED | • underthrusted v. Simple past tense and past participle of underthrust. |
| UNDERUTILISED | • underutilised adj. (British spelling) Alternative form of underutilized. • underutilised v. Simple past tense and past participle of underutilise. • UNDERUTILISE v. to utilize less than fully, also UNDERUTILIZE. |
| UNDERUTILIZED | • underutilized adj. Insufficiently utilized. • underutilized v. Simple past tense and past participle of underutilize. • UNDERUTILIZE v. to utilize less than fully, also UNDERUTILISE. |
| UNDISTRIBUTED | • undistributed adj. Not distributed. • undistributed adj. (Computing) Not employing the technique of distributed computing. • UNDISTRIBUTED adj. not distributed. |
| UNDISTURBEDLY | • undisturbedly adv. Calmly; tranquilly; without disturbance. • UNDISTURBED adv. not disturbed. |