| Unilever hygiene product | 24 |
| Unilever laundry soap brand | 27 |
| Unilever men's brand | 24 |
| Unilever skin cream brand | 25 |
| Unilever's largest brand | 28 |
| Unimaginable time period | 24 |
| Unimaginably long stretches | 27 |
| Unimaginably long time | 22 |
| Unimaginably long time (Var.) | 29 |
| Unimaginative gift, maybe | 25 |
| Unimaginative rejoinder | 23 |
| Unimaginative rhyme scheme | 26 |
| Unimaginative sequel, say | 25 |
| Unimak Island inhabitants | 25 |
| Unimpeachable information | 25 |
| Unimportant part of a speech | 28 |
| Unimportant, as a town | 22 |
| Unimpressive brain size | 23 |
| Unimpressive, as an excuse | 26 |
| Unimprovable situation | 22 |
| Uninclined to complain | 22 |
| Uninhabited land, sometimes | 27 |
| Uninhibitedly energetic | 23 |
| Uninspired learning method | 26 |
| Uninspired new version | 22 |
| Uninspired teaching method | 26 |
| Uninspiring lecturers, e.g. | 27 |
| Unintelligible chatter | 22 |
| Unintelligible talking | 22 |
| Unintelligible writing to me | 28 |
| Unintended consequence | 22 |
| Unintended consequences | 23 |
| Unintentional revelation | 24 |
| Uninterested in working | 23 |
| Uninteresting progress report | 29 |
| Uninteresting, like a show | 26 |
| Uninterrupted sequence | 22 |
| Uninvited cookout guest? | 24 |
| Uninvited cornfield guest | 25 |
| Uninvited house guest? | 22 |
| Uninvited picnic attendee | 25 |
| Uninvited picnic guests | 23 |
| Uninvited wedding guest | 23 |
| Uninviting to a vegan, e.g. | 27 |
| Union and others: Abbr. | 23 |
| Union at the docks: Abbr. | 25 |
| Union based in Detroit, Mich. | 29 |
| Union boss who went missing | 27 |
| Union bosses' bunks? | 24 |
| Union broken by Pres. Reagan | 28 |
| Union Civil War general | 23 |
| Union collectors' items | 27 |
| Union commander at Gettysburg | 29 |
| Union contract provision | 24 |
| Union contract subject | 22 |
| Union disbanded by Reagan | 25 |
| Union former in 1993: Abbr. | 27 |
| Union founded in '35 | 24 |
| Union founded in 1905: Abbr. | 28 |
| Union general at Antietam | 25 |
| Union general at Gettysburg | 27 |
| Union general at Shiloh | 23 |
| Union general's kin | 23 |
| Union in a 1955 merger | 22 |
| Union in Chicago, e.g. | 22 |
| Union in D.C., for example | 26 |
| Union in Detroit, initially | 27 |
| Union in the European capital | 29 |
| Union inits. starting in 1886 | 29 |
| Union leader John L. ___ | 24 |
| Union leaders, perhaps? | 23 |
| Union led by Richard Trumka | 27 |
| Union mem. since 2/14/1912 | 26 |
| Union member at times | 22 |
| Union member since 1803 | 23 |
| Union member since 1820 | 23 |
| Union member since 1850 | 23 |
| Union member since 1890 | 23 |
| Union member since 1896 | 23 |
| Union member's payment | 26 |
| Union mems. until 1991 | 22 |
| Union negotiation topics | 24 |
| Union opponent, briefly | 23 |
| Union Pacific and BNSF | 22 |
| Union Pacific et al.: Abbr. | 27 |
| Union Pacific headquarters | 26 |
| Union Pacific terminus | 22 |
| Union requirement, maybe? | 25 |
| Union Sq. and Times Sq. | 23 |
| Union steward's domain | 26 |
| Union with 2 1/2 mil. members | 29 |
| Union with 2.7 mil. members | 27 |
| Union with 3.2 mil. members | 27 |
| Union's collection | 22 |
| Union's contract demand? | 28 |
| Union's minimum wage | 24 |
| Union, in D.C., for one | 23 |
| Union, in L.A. or D.C. | 22 |
| Union-management agcy. | 22 |
| Union-mgmt. dispute watchdog | 28 |