| Insiders, of a sort | 19 |
| Insides | 7 |
| Insidious | 9 |
| Insidious Arnold | 16 |
| Insidious computer program | 26 |
| Insidious malware with a classically derived name | 49 |
| Insidious one | 13 |
| Insidious sort | 14 |
| Insight | 7 |
| Insight into pastry? | 20 |
| Insight offerer | 15 |
| Insight provider? | 17 |
| Insightful | 10 |
| Insightful cries | 16 |
| Insightful cry | 14 |
| Insightful quality | 18 |
| Insightful sighs | 16 |
| Insightful thinking | 19 |
| Insightfulness | 14 |
| Insights | 8 |
| Insignia | 8 |
| Insignia for a brigadier general | 32 |
| Insignia on Cardinals caps | 26 |
| Insignia on Pirates uniforms | 28 |
| Insignia on some fighters | 25 |
| Insignia site | 13 |
| Insignia spot | 13 |
| Insignia, for short | 19 |
| Insignificance | 14 |
| Insignificant | 13 |
| Insignificant amount | 20 |
| Insignificant amounts | 21 |
| Insignificant bit | 17 |
| Insignificant bits | 18 |
| Insignificant detail | 20 |
| Insignificant dot | 17 |
| Insignificant fellow | 20 |
| Insignificant fellows | 21 |
| Insignificant fellows: var. | 27 |
| Insignificant guy (and #7 on the "Top Ten Words That Sound Romantic When Spoken By Barry White") | 106 |
| Insignificant individual | 24 |
| Insignificant injury | 20 |
| Insignificant jot | 17 |
| Insignificant little kangaroo? | 30 |
| Insignificant New York band? | 28 |
| Insignificant occasion | 22 |
| Insignificant one | 17 |
| Insignificant ones | 18 |
| Insignificant person | 20 |
| Insignificant person, metaphorically | 36 |
| Insignificant punk | 18 |
| Insignificant quibbles | 22 |
| Insignificant recovery after a steep market drop | 48 |
| Insignificant recovery in a stock price | 39 |
| Insignificant row | 17 |
| Insignificant sort | 18 |
| Insignificant sorts | 19 |
| Insignificant speck | 19 |
| Insignificant specks | 20 |
| Insignificant spread? | 21 |
| Insignificant sum | 17 |
| Insignificant thing | 19 |
| Insignificant things | 20 |
| Insignificant to the max | 24 |
| Insignificant train station | 27 |
| Insignificant type | 18 |
| Insignificant upturn | 20 |
| Insignificant woodpile? | 23 |
| Insignificant wound | 19 |
| Insignificant, as a town | 24 |
| Insignificant, as chatter | 25 |
| Insignificant, as gossip | 24 |
| Insignificant, in a way | 23 |
| Insignificant, slangily | 23 |
| Insignificantly small | 21 |
| Insincere | 9 |
| Insincere (Var.) | 16 |
| Insincere agreement | 19 |
| Insincere denial | 16 |
| Insincere display | 17 |
| Insincere earnestness | 21 |
| Insincere encouragement | 23 |
| Insincere expression of gratitude | 33 |
| Insincere flatterer | 19 |
| Insincere flattery | 18 |
| Insincere flattery, in slang | 28 |
| Insincere Heep | 14 |
| Insincere homage | 16 |
| Insincere ladies' men | 25 |
| Insincere lament | 16 |
| Insincere language | 18 |
| Insincere one | 13 |
| Insincere palaver | 17 |
| Insincere praise | 16 |
| Insincere promise | 17 |
| Insincere promise to perform | 28 |
| Insincere put-ons | 17 |
| Insincere show of sorrow | 24 |
| Insincere sort | 14 |
| Insincere statements | 20 |