| Unprotected from the sun | 24 |
| Unprotected chess piece | 23 |
| Unpromising, as a chance | 24 |
| Unprofitable, as a situation | 28 |
| Unprofessional, slangily | 24 |
| Unprofessional film quality | 27 |
| Unproductive exercises | 22 |
| Unproductive commotion | 22 |
| Unprocessed information | 23 |
| Unprincipled politicians | 24 |
| Unprincipled operation? | 23 |
| Unpretentious, in the South | 27 |
| Unpretentious, in Paris | 23 |
| Unpretentious instrument | 24 |
| Unpretentious in nature | 23 |
| Unprestigious publication | 25 |
| Unprepossessing females | 23 |
| Unprepared for shopping? | 24 |
| Unpredictable phenomenon | 24 |
| Unpredictable occurrences | 25 |
| Unpredictable influence | 23 |
| Unpredictable determinant | 25 |
| Unpredictable currents | 22 |
| Unpopular teenage spots | 23 |
| Unpopular spots for teenagers | 29 |
| Unpopular org. in April | 23 |
| Unpopular facial spots | 22 |
| Unpopular April letters | 23 |
| Unpopular 1773 legislation | 26 |
| Unpopped popcorn pieces | 23 |
| Unpolished knight wear? | 23 |
| Unploughed ridges, in Britain | 29 |
| Unpleasantness for the nose | 27 |
| Unpleasantly surprised | 22 |
| Unpleasantly moist and humid | 28 |
| Unpleasantly difficult | 22 |
| Unpleasantly damp and chilly | 28 |
| Unpleasantly conspicuous | 24 |
| Unpleasant: Comb. form | 22 |
| Unpleasant, as weather | 22 |
| Unpleasant, as details | 22 |
| Unpleasant, as a situation | 26 |
| Unpleasant way to meet | 22 |
| Unpleasant way to live | 22 |
| Unpleasant type of mail | 23 |
| Unpleasant to the touch | 23 |
| Unpleasant to be around | 23 |
| Unpleasant thing to step on | 27 |
| Unpleasant thing to invoke | 26 |
| Unpleasant thing to incur | 25 |
| Unpleasant thing to hit | 23 |
| Unpleasant thing to evoke | 25 |
| Unpleasant thing to eat | 23 |
| Unpleasant sound in nature | 26 |
| Unpleasant site or sight | 24 |
| Unpleasant rules to be under | 28 |
| Unpleasant responsibility | 25 |
| Unpleasant political tactic | 27 |
| Unpleasant party guest | 22 |
| Unpleasant issue to handle | 26 |
| Unpleasant interaction | 22 |
| Unpleasant information | 22 |
| Unpleasant face covering | 24 |
| Unpaved edge of a road | 22 |
| Unpaired, as a chromosome | 25 |
| Unpaid staffers, usually | 24 |
| Unpaid sitter, perhaps | 22 |
| Unpaid loan result, sometimes | 29 |
| Unpaid factory workers | 22 |
| Unpaid babysitters, maybe | 25 |
| Unpaid babysitter, perhaps | 26 |
| Unpaid babysitter, often | 24 |
| Unorthodox debate stoppage | 26 |
| Unoriginal newspaper worker? | 28 |
| Unopposed candidate: 1789 | 25 |
| Unopened, as a wine bottle | 26 |
| Unoiled robot's problem? | 28 |
| Unofficial ticket source | 24 |
| Unofficial Seabees' motto | 29 |
| Unofficial promissory note | 26 |
| Unofficial news source | 22 |
| Unofficial end of summer | 24 |
| Unofficial discussions | 22 |
| Unofficial Aussie anthem | 24 |
| Unofficial advisers of a sort | 29 |
| Unoccupied, as country | 22 |
| Unoccupied, as a theater seat | 29 |
| Unobtrusive attention getter | 28 |
| Uno, dos, tres, -- ... | 22 |
| Uno + due + tre + quattro | 25 |
| Unnecessary part of a jacket? | 29 |
| Unnavigable river of Russia | 27 |
| Unnaturally high voice | 22 |
| Unnaturally blonde, e.g. | 24 |
| Unnatural, as hair color | 24 |
| Unnatural morning spread | 24 |
| Unnatural blondes, e.g. | 23 |
| Unnatural blonde, e.g. | 22 |
| Unnamed people or things | 24 |
| Unnamed others, briefly | 23 |