| Insensible states | 17 |
| Insensitive | 11 |
| Insensitive and coarse | 22 |
| Insensitive bygone Crayola color | 32 |
| Insensitive fellow | 18 |
| Insensitive jerk | 16 |
| Insensitive sort | 16 |
| Insensitive to pain | 19 |
| Insensitive, for short | 22 |
| Insensitive, in a way | 21 |
| Insensitive, in modern times | 28 |
| Insensitive; boorish | 20 |
| Insensitivity | 13 |
| Inseparable | 11 |
| Inseparable companion of Lynceus | 32 |
| Inseparable friend | 18 |
| Inseparable friends | 19 |
| Inseparable friends of legend | 29 |
| Inseparable friends on "Community" | 44 |
| Inseparable middle sch. pals, perhaps | 37 |
| Inseparable twosome | 19 |
| Insert | 6 |
| Insert "@#$%!," say | 29 |
| Insert a sound track | 20 |
| Insert blank pages between | 26 |
| Insert blank pages in a book | 28 |
| Insert carets, perhaps | 22 |
| Insert cartridges | 17 |
| Insert cartridges again | 23 |
| Insert casually | 15 |
| Insert coins in, as a parking meter | 35 |
| Insert film into a camera | 25 |
| Insert firmly | 13 |
| Insert for a Selectric | 22 |
| Insert for some cameras | 23 |
| Insert for some old cameras | 27 |
| Insert forcefully | 17 |
| Insert fresh ammo | 17 |
| Insert fresh cartridges | 23 |
| Insert fresh film | 17 |
| Insert in a plant | 17 |
| Insert in a tape recorder | 25 |
| Insert in the game | 18 |
| Insert mark | 11 |
| Insert marker | 13 |
| Insert marks | 12 |
| Insert more ammo | 16 |
| Insert more rounds | 18 |
| Insert sign | 11 |
| Insert surreptitiously | 22 |
| Insert, as a code | 17 |
| Insert, as into a tight schedule | 32 |
| Insert: Abbr. | 13 |
| Inserted | 8 |
| Inserted a rider | 16 |
| Inserted bud | 12 |
| Inserted covertly | 17 |
| Inserted, in a way | 18 |
| Insertion in an operation | 25 |
| Insertion indication | 20 |
| Insertion indicator | 19 |
| Insertion into a deck | 21 |
| Insertion into an old deck | 26 |
| Insertion mark | 14 |
| Insertion marks | 15 |
| Insertion point indicator | 25 |
| Insertion sign | 14 |
| Insertion signal | 16 |
| Insertion symbol | 16 |
| Inserts | 7 |
| Inserts a fresh clip | 20 |
| Inserts fraudulently | 20 |
| Inserts in sashes | 17 |
| Inserts more film | 17 |
| Inserts new ammo | 16 |
| Inserts on skirts | 17 |
| Inserts wrong, as fax paper | 27 |
| Inserts, as a cartridge | 23 |
| Inserts, often | 14 |
| Inset feature: Abbr. | 20 |
| Inset grids: Abbr. | 18 |
| Inset site | 10 |
| Inside | 6 |
| Inside a building | 17 |
| Inside and out | 14 |
| Inside bag | 10 |
| Inside company? | 15 |
| Inside cover, often | 19 |
| Inside diameter, as of a gun | 28 |
| Inside dope | 11 |
| Inside flight | 13 |
| Inside image | 12 |
| Inside info | 11 |
| Inside info for an investor, maybe | 34 |
| Inside info provider | 20 |
| Inside info source | 18 |
| Inside info, slangily | 21 |
| Inside information | 18 |
| Inside information, in slang | 28 |
| Inside information? | 19 |