English Synonym Words Starting With I
| identical | alike, duplicate |
| idle | inactive, lazy |
| ignorant | uninformed, unaware |
| immaculate | spotless, pure |
| immature | childish, inexperienced |
| immune | resistant, exempt |
| impartial | neutral, unbiased, fair |
| impatient | eager, anxious, intolerant |
| imperative | compulsory, crucial, mandatory |
| imperfect | marred, defective, faulty |
| impetuous | impulsive, rash, reckless |
| important | significant, meaningful |
| independent | self-reliant, autonomous |
| inferior | lesser, substandard |
| infuriate | enrage, agitate, provoke |
| ingenious | clever, creative, original |
| innocent | guiltless, blameless |
| insane | crazy, deranged, mad |
| insufficient | inadequate, deficient |
| intelligent | bright, sensible, rational |
| interesting | provocative, engrossing |
| intermittent | sporadic, periodic |
| internal | inner, inside |
| intolerant | bigoted, prejudiced |
| intriguing | fascinating, enthralling |
| irrelevant | inappropriate, unrelated |
| irritate | annoy, agitate, provoke |
