| Impossible math instruction | 27 |
| Impossible score in football | 28 |
| Impossible thing to get | 23 |
| Impossible to duplicate | 23 |
| Impossible to get close to | 26 |
| Impossible to see through | 25 |
| Impossible to tell apart | 24 |
| Impossible to understand | 24 |
| Impostor in a sheikdom? | 23 |
| Impostor's excuse? | 22 |
| Impound for the duration | 24 |
| Impoverished existence | 22 |
| Impractically idealistic | 24 |
| Imprecise cooking measure | 25 |
| Imprecise recipe amount | 23 |
| Imprecise recipe phrase | 23 |
| Impregnable stronghold | 22 |
| Impresario Hurok: 1888-1974 | 27 |
| Impresario's presentation | 29 |
| Impress clearly in the mind | 27 |
| Impress through brilliance | 26 |
| Impress to the nth degree | 25 |
| Impress, and then some | 22 |
| Impress, as in the memory | 25 |
| Impressed and then some | 23 |
| Impressed one's cry | 23 |
| Impressed one's remark | 26 |
| Impressed person's sound | 28 |
| Impressed tremendously | 22 |
| Impressed, romantically | 23 |
| Impresses, colloquially | 23 |
| Impression of Count Dracula? | 28 |
| Impression of domesticity? | 26 |
| Impression of surgery? | 22 |
| Impression of the fifties? | 26 |
| Impressionism originator | 24 |
| Impressionist Édouard | 25 |
| Impressionist collection | 24 |
| Impressionist composer Erik | 27 |
| Impressionist of France | 23 |
| Impressionist originator | 24 |
| Impressionist painter Claude | 28 |
| Impressionist painter Degas | 27 |
| Impressionist painter Mary | 26 |
| Impressionist Pierre-Auguste | 28 |
| Impressionist's art | 23 |
| Impressionist's opening | 27 |
| Impressionist's skill | 25 |
| Impressionist's specialty | 29 |
| Impressionist's technique | 29 |
| Impressionist's works | 25 |
| Impressionists Monet ___ | 24 |
| Impressionists' leader | 26 |
| Impressionists, on stage | 24 |
| Impressive accomplishment | 25 |
| Impressive achievement | 22 |
| Impressive achievements | 23 |
| Impressive and then some | 24 |
| Impressive basketball feat | 26 |
| Impressive composition | 22 |
| Impressive head-turners | 23 |
| Impressive Impressionist | 24 |
| Impressive in appearance | 24 |
| Impressive in size or scope | 27 |
| Impressive N.Y. harbor sight | 28 |
| Impressive organization | 23 |
| Impressive way to go out | 24 |
| Impressive way to walk? | 23 |
| Impressive, as accommodations | 29 |
| Impressive, so to speak | 23 |
| Impressive, to surfers | 22 |
| Imprint in one's mind | 25 |
| Imprint of HarperCollins | 24 |
| Imprint on a hard surface | 25 |
| Imprint, as in the memory | 25 |
| Imprinted with indicia | 22 |
| Imprints, as in memory | 22 |
| Imprisoned feline's call? | 29 |
| Imprisoned group of a sort | 26 |
| Improbable victory, in slang | 28 |
| Improbable, as a story | 22 |
| Impromptu flat screwdriver | 26 |
| Impromptu Halloween costume | 27 |
| Impromptu jazz exhibition | 25 |
| Impromptu jazz get-togethers | 28 |
| Impromptu jazz performance | 26 |
| Impromptu jazz sessions | 23 |
| Impromptu musical group | 23 |
| Impromptu musical performance | 29 |
| Impromptu picnic locales | 24 |
| Impromptu, as a committee | 25 |
| Impromptu, as pictures | 22 |
| Improper sushi implement | 24 |
| Improper way to take the SAT | 28 |
| Improper, as influence | 22 |
| Improperly insulated, perhaps | 29 |
| Improperly long sentence | 24 |
| Improperly off base, in brief | 29 |
| Improperly passed, as a check | 29 |
| Improv comedy troupe members | 28 |