| A | B |
| hors d'oeuvre | noun; an appetizer |
| immaculate | adjective; spotless |
| impartial | adjective; fair; unbiased |
| impediment | noun; an obstruction of some kind; a speech disorder |
| imperceptible | adjective; unnoticeable; indiscernible |
| implacable | adjective; relentless; not capable of being pacified or appeased |
| imposition | noun; burden; obligation |
| inaccessible | adjective; unapproachable; not easily reached or approached |
| inadvertent | adjective; unintentional; not done on purpose |
| inalienable | adjective; inherent; not capable of being taken away |