| A | B |
|---|
| illegible | (adj.) impossible or hard to read; undecipherable |
| illiterate | (adj.) unable to read or write; uneducated |
| illogical | (adj.) not observing the rules of logic (correct reasoning); irrational |
| immaculate | (adj.) not spotted; absolutely clean; stainless |
| immature | (adj.) not fully grown or developed; childish |
| impunity | (n.) freedom from punishment, harm, loss, etc.; immunity |
| inaccessible | (adj.) unreachable; hard to get to; unapproachable |
| incessant | (adj.) continuing without interruption |
| inflexible | (adj.) not easily bent; firm; unyielding |
| ingratitude | (n.) ungratefulness; lack of gratitude |
| inhospitable | (adj.) not showing kindness to guests and strangers; unfriendly |
| insoluble | (adj.) incapable of being solved; not capable of being dissolvedin |
| irreconcilable | (adj.) not able to be brought into friendly accord or compromise; incompatible |
| irrelevant | (adj.) inapplicable; off the topic; extraneous |
| irrevocable | (adj.) incapable of being recalled or revoked; unalterable, irreversible |
