Synonyms and Antonyms Starting with Letter I! There are many words in the English language that have similar meanings, known as synonyms. There are also words with opposite meanings, called antonyms. Here are some examples of words starting with the letter “I” that has either a synonym or antonym.
The word “interesting” has a synonym with “engaging.” Another word for “interesting” is “fascinating.” Conversely, the word “boring” is an antonym for “interesting.” Meanwhile, the word “important” is a synonym for “significant.” An antonym of “important” is “unimportant.”
The word “inside” has a synonym with “interior.” Another word for “inside” is “indoors.” Conversely, the word “outside” is an antonym of “inside.” Meanwhile, the word “introverted” is a synonym for “reserved.” An antonym of “introverted” is “extroverted.”
As you can see, there are many words in the English language that have similar or opposite meanings. By learning to identify these words, you can improve your ability to communicate effectively.
Synonyms and Antonyms Starting with Letter I
Sr. | Words | Synonyms | Antonyms |
1 | Idle | inactive, lazy | busy, ambitious |
2 | Ignorant | uninformed, unaware | knowledgeable |
3 | Immaculate | unsullied, spotless | defiled, tarnished |
4 | Immature | childish, inexperienced | mature, adult |
5 | Immense | huge, enormous | puny, insignificant |
6 | Immerse | submerge, involve | emerge, uncover |
7 | Imminent | impending, brewing | distant, receding |
8 | Immune | resistant, exempt | susceptible |
9 | Immunity | prerogative, privilege | blame, censure |
10 | Impair | diminish, deteriorate | restore, revive |
11 | Impartial | just, unbiased | prejudiced, biased |
12 | Impatient | eager, anxious, intolerant | patient |
13 | Impediment | hurdle, obstruction | assistant, concurrence |
14 | Impenitent | uncontrite, obdurate | repentant |
15 | Imperative | compulsory, crucial, mandatory | unnecessary, optional |
16 | Imperfect | marred, defective, faulty | perfect, flawless |
17 | Impetuous | impulsive, rash, reckless | restrained, careful |
18 | Impious | irreligious, unholy | pious, devout |
19 | Important | significant, meaningful | unimportant, meaningless |
20 | Impulsive | flaky, impetuous | cautious, deliberate |
21 | Impute | attribute, ascribe | exculpate, support |
22 | Inclination | disposition, affection | indifference, disinclination |
23 | Incompetent | inefficient, unskilled | dexterous, skilled |
24 | Incongruous | inappropriate, absurd | compatible, harmonious |
25 | Independent | self-reliant, autonomous | dependent, unsure |
26 | Indifferent | equitable, haughty | partial, biased |
27 | Indigent | destitute, impoverished | rich, affluent |
28 | Inevitable | unavoidable, ascertained | unlikely, doubtful |
29 | Inferior | lesser, substandard | superior |
30 | Infernal | damned, accursed | heavenly, |
31 | Infringe | violate, encroach | comply, concur |
32 | Infuriate | enrage, agitate, provoke | soothe, clam |
33 | Ingenious | clever, creative, original | unoriginal, dull |
34 | Ingenuous | undisguised, naive | wily, craftly |
35 | Innocent | guiltless, blameless | guilty |
36 | Insane | crazy, deranged, mad | sane |
37 | Insinuate | allude, hint | conceal, camouflage |
38 | Insipid | tedious, prosaic | pleasing, appetizing |
39 | Insolvent | indigent, destitute | wealthy, solvent |
40 | Instill | inculcate, inject | eradicate, extract |
41 | Insufficient | inadequate, deficient | adequate, enough | ||||
42 | Intelligent | bright, sensible, rational | ignorant, dense | ||||
43 | Interesting | enchanting, riveting | dull, uninteresting | ||||
44 | Intermittent | sporadic, periodic | regular, continual | ||||
45 | Internal | inner, inside | external, outer | ||||
46 | Intolerant | bigoted, prejudiced | understanding, accepting | ||||
47 | Intricate | tangled, complicated | regulated, orderly | ||||
48 | Intrigue | scheme, conspiracy | candor, sincerity | ||||
49 | Intriguing | fascinating, enthralling | uninteresting, dull | ||||
50 | Intrinsic | genuine, fundamental | extraneous, incidental | ||||
51 | Invective | accusation, censure | approval, acclamation | ||||
52 | Invincible | unconquerable, impregnable | effeminate, languid | ||||
53 | Irrelevant | inappropriate, unrelated | relevant, pertinent, applicable | ||||
54 | Irrepressible | irresistible, unconfined | composed, hesitant | ||||
55 | Irritate | annoy, agitate, provoke | soothe, calm | ||||