| Word | Definitions | Synonyms |
|---|---|---|
| indocile | (adjective) incapable of being controlled | Synonyms: uncontrollable, ungovernable, unruly |
| indolent | (adjective) disinclined to work or exertion | Synonyms: faineant, lazy, otiose, slothful, work-shy |
| (adjective) (of tumors, e.g.) slow to heal or develop and usually painless | - | |
| indomitable | (adjective) impossible to subdue | Synonyms: never-say-die, unsubduable |
| indoor | (adjective) located, suited for, or taking place within a building | - |
| (adjective) within doors | - |