| Unable to react chemically | 26 |
| Unable to reach a verdict | 25 |
| Unable to reach a decision | 26 |
| Unable to range freely | 22 |
| Unable to pay the full amount | 29 |
| Unable to pay the bill | 22 |
| Unable to pass the bar? | 23 |
| Unable to pass muster, say | 26 |
| Unable to make the grade | 24 |
| Unable to kick the habit | 24 |
| Unable to keep a secret? | 24 |
| Unable to hit pitches? | 22 |
| Unable to hit a pitch? | 22 |
| Unable to go with the floe | 26 |
| Unable to give you anything? | 28 |
| Unable to get traction, maybe | 29 |
| Unable to get the job done | 26 |
| Unable to get much worse | 24 |
| Unable to get any thicker | 25 |
| Unable to function, slangily | 28 |
| Unable to find one's way | 28 |
| Unable to extricate oneself | 27 |
| Unable to escape, in a way | 26 |
| Unable to eat another bite | 26 |
| Unable to dig oneself out | 25 |
| Unable to decide, as a jury | 27 |
| Unable to decide what to do | 27 |
| Unable to carry a tune | 22 |
| Unable to bear anymore? | 23 |
| Unable to avoid the check? | 26 |
| Unable or unwilling to hear | 27 |
| Una ___ (old coin words) | 24 |
| Una __: using the soft pedal | 28 |
| Una y __ vez: time after time | 29 |
| Una hora in the afternoon | 25 |
| Una década has 10 | 24 |
| Un-PC name to call a female | 27 |
| Un-PC high school class | 23 |
| Un-P.C. suffix, to many | 23 |
| Un-biased Lincoln supporter? | 28 |
| UN's activity, at times | 27 |
| UN working-conditions agency | 28 |
| UN working conditions agcy. | 27 |
| UN workers' rights gp. | 26 |
| UN workers' rights agcy. | 28 |
| UN workers' agency | 22 |
| UN workers' advocate | 24 |
| UN worker protection grp. | 25 |
| UN Special Envoy to Haiti | 25 |
| UN member until '91 | 23 |
| UN member since '76 | 23 |
| UN member since '62 | 23 |
| UN member since '49 | 23 |
| UN labour organization | 22 |
| UN immunization agency | 22 |
| UN head before Ki-moon | 22 |
| UN delegate since 2002 | 22 |
| UN delegate since 2000 | 22 |
| UN anti-child-labor agcy. | 25 |
| Un and un and un and un | 23 |
| UN ambassador under JFK | 23 |
| UN ambassador before Vernon | 27 |
| UN agency established in 1919 | 29 |
| UN advocate for workers | 23 |
| Un : France :: ___ : Germany | 28 |
| UN social development agency | 29 |
| UMW's labor leader | 22 |
| Umpteen, with "a" | 27 |
| Umpteen's ordinal? | 22 |
| Umps' counterparts | 22 |
| Umpire's yell, sometimes | 28 |
| Umpire's visual call | 24 |
| Umpire's thumb signal | 25 |
| Umpire's palms-down call | 28 |
| Umpire's face wear | 22 |
| Umpire's call, sometimes | 28 |
| Umpire's assistant | 22 |
| Umpire's aid, at times | 26 |
| Umpire in the Hall of Fame | 26 |
| Ump's thumb-extended call | 29 |
| Ump's plate cleaner | 23 |
| Ump's call, sometimes | 25 |
| Ump's call, in baseball | 27 |
| Umm al-Quwain, for one | 22 |
| Umlauts' kin (Var.) | 23 |
| Umlaut-bearing bubbly brand | 27 |
| Umbrette's relative | 23 |
| Umbrella-shaped growth | 22 |
| Umbrella-garnished drink | 24 |
| Umbrella-capped mushroom | 24 |
| Umbrella seller's song? | 27 |
| Umbrella plant, for one | 23 |
| Umbrella org. of draft boards | 29 |
| Umbrella holder, perhaps | 24 |
| Umbrella girl's brand | 25 |
| Umbrella for Mrs. Sairey | 24 |
| Umberto II was its last king | 28 |
| Umber or chocolate brown | 24 |
| UMass's conference | 22 |
| Uma Thurman film of 1997 | 24 |