Alphabetic I
| 37 | infinitesimal | adjective | See |
| 38 | ingratitude | noun | See |
| 39 | Incentive | noun | See |
| 40 | illustrious | adjective | See |
| 41 | intolerable | adjective | See |
| 42 | imposter | noun | See |
| 43 | inflict | verb | See |
| 44 | influx | noun | See |
| 45 | intangible | adjective | See |
| 46 | impressive | adjective | See |
| 47 | insurrection | noun | See |
| 48 | immense | adjective | See |