| Indefinitely long time | 22 |
| Indefinitely long period | 24 |
| Indefinitely large degree | 25 |
| Indefinitely great number | 25 |
| Indefinite time periods | 23 |
| Indefinite ordinal number | 25 |
| Indefinite large number | 23 |
| Indefinite article in Italy | 27 |
| Indefinable time period | 23 |
| Indefinable surrounding | 23 |
| Indefinable somethings | 22 |
| Indebted basketball star | 24 |
| Ind. nation since 1948 | 22 |
| Ind. government organization | 28 |
| Incurved chair support | 22 |
| Incursion at a sorority | 23 |
| Incurs lots of, as costs | 24 |
| Incurring a fine, perhaps | 25 |
| Incurring a fine, maybe | 23 |
| Incurred, as a bar tab | 22 |
| Incurred, as a bar bill | 23 |
| Incur the SEC's wrath | 25 |
| Incumbents on their way out | 27 |
| Inculcate, as suspicion | 23 |
| Incubus song about shoveling? | 29 |
| Incubus singer Brandon | 22 |
| Incubus lead singer Brandon | 27 |
| Incubus "Make ___" | 28 |
| Incubator baby, familiarly | 26 |
| Incrustation on a keel | 22 |
| Incriminating record, maybe | 27 |
| Incriminating information | 25 |
| Incredulous exclamation | 23 |
| Incredulous dying words | 23 |
| Incredulous declaration | 23 |
| Incredulous accusation | 22 |
| Incredibly valuable gem | 23 |
| Incredibly smart people | 23 |
| Incredibly inexpensive | 22 |
| Incredible, as an account | 25 |
| Incredible stretch of asphalt | 29 |
| Incredible Midwest village? | 27 |
| Incredible hole-in-one? | 23 |
| Increasingly uncomfortable | 26 |
| Increasingly shallow inlet | 26 |
| Increasingly rare PC part | 25 |
| Increasingly rare PC monitors | 29 |
| Increasingly rare office job | 28 |
| Increasingly popular TV genre | 29 |
| Increasingly dull state | 23 |
| Increasingly deep inlet | 23 |
| Increasing severalfold | 22 |
| Increasing in vol., musically | 29 |
| Increases, carpentry style | 26 |
| Increases, as the ante | 22 |
| Increases, as production | 24 |
| Increases, as an amount | 23 |
| Increases the intensity | 23 |
| Increases the E, in RHE | 23 |
| Increases one's speed | 25 |
| Increases molecular motion | 26 |
| Increases greatly, as prices | 28 |
| Increases artificially | 22 |
| Increases a few notches | 23 |
| Increased-clarity syst. | 23 |
| Increased, as the score | 23 |
| Increased, as production | 24 |
| Increased, as inflation | 23 |
| Increased significantly | 23 |
| Increased government theft | 26 |
| Increase, with "up" | 29 |
| Increase, with "to" | 29 |
| Increase, in music, briefly | 27 |
| Increase, as production | 23 |
| Increase, as an incline | 23 |
| Increase, as a fries order | 26 |
| Increase the r.p.m.'s | 25 |
| Increase suddenly and sharply | 29 |
| Increase sales potential | 24 |
| Increase rapidly, as prices | 27 |
| Increase progressively | 22 |
| Increase one's grade? | 25 |
| Increase one's commitment | 29 |
| Increase Mather, for one | 24 |
| Increase Mather was one | 23 |
| Increase magnification | 22 |
| Increase in volume, in mus. | 27 |
| Increase in verticality | 23 |
| Increase in troop levels | 24 |
| Increase in speed: Abbr. | 24 |
| Increase in salary, to a Brit | 29 |
| Increase in friendliness | 24 |
| Increase in back talk? | 22 |
| Increase domestic activity? | 27 |
| Increase by 200 percent | 23 |
| Increase an auction offer | 25 |
| Increase a hundredfold | 22 |
| Incorporated, in Brit. | 22 |
| Incorporated towns, for short | 29 |
| Incorporated gradually | 22 |