- INORDINATE (ADJECTIVE): excessive
Synonyms: dizzying, exorbitant
Antonyms: moderate, reasonable
Example Sentence: Some dogs are very hyper and require an inordinate amount of attention from their owners.
- INDIGENOUS (ADJECTIVE): native
Synonyms: domestic, homegrown
Antonyms: alien, foreign
Example Sentence: Nothing beats fresh produce from the ground in its indigenous state.
- INTERMITTENT (ADJECTIVE): irregular
Synonyms: fitful, infrequent
Antonyms: regular, frequent
Example Sentence: The holiday lights are intermittent and flicker on and off constantly.
- INCESSANT (ADJECTIVE): ceaseless
Synonyms: endless, continuous
Antonyms: bounded, ceasing
Example Sentence: His hostility to Reva was incessant.
- INSULAR (ADJECTIVE): narrow-minded
Synonyms: circumscribed, parochial
Antonyms: broad-minded, unbiased
Example Sentence: Only a few people live in their insular neighborhood in the coldest part of Alaska.
- JINX (NOUN): curse
Synonyms: hex, hoodoo
Antonyms: boon, luck
Example Sentence: He regarded her as a jinx because she had lost her husband.
- INERTIA (NOUN): laziness
Synonyms: passivity, sluggishness
Antonyms: action, activity
Example Sentence: After a large meal, inertia usually keeps me on the couch all day.
- IMMACULATE (ADJECTIVE): unspoiled
Synonyms: exquisite, neat
Antonyms: dull, defiled
Example Sentence: The soldier was reprimanded for ruining his immaculate uniform.
- IMPUTE (VERB): attribute
Synonyms: accredit, assign
Antonyms: exonerate, exculpate
Example Sentence: Even though my sister had broken the window, she tried to impute the damage onto me.
- INKLING (NOUN): idea
Synonyms: clue, hunch
Antonyms: knowledge, information
Example Sentence: The records give us an inkling of how people saw the world.