Words

Incorporeal

not composed of matter; having no material existence

"A supreme but incorporeal being called God"

Synonyms:intangible impalpable

Incumbent

Synonyms:mandatory, obligatory, imperative

"The incumbent CM"

Synonyms:occupant, office bearer, current

Incursion

an invasion or attack, especially a sudden or brief one

Synonyms:attack, assault, raid, invasion, storming

Indignation

anger about a situation that you think is wrong or not fair

Synonyms:resentment, umbrage, affront, anger, offence

Antonyms:contentment

Indiscreet

loud, inappropriate and thoughtless person who often reveals secrets

"They have been embarrassed by indiscreet friends"

Synonyms:imprudent, careless

Indulgence

Synonyms:tolerance, lenience, forbearance, clemency

Inebriation

the state of being drunk

Synonyms:intoxication, insobreity inebriate

Inertia

Synonyms:inactivity, inaction

Inevitable

certain to happen

Synonyms:unavoidable, inescapable, inexorable, assured, certain

Antonyms:avoidable, uncertain

Inexorable

impossible to stop or prevent

"The progress of science is inexorable"

Synonyms:unstoppable

Infamy

well known for some bad quality or deed

Synonyms:notoriety, disrepute

Infecund

unable to bear children

Synonyms:barren, sterile, infertile, fallow, unfruitful

Infidelity

Synonyms:unfaithfulness, adultery

Ingenious

(of a person) very intelligent and skilful

Synonyms:inventive, creative, clever, innovative

(of a thing) skilfully made or planned

Ingenuous

(of a person or action) innocent and unsuspecting

Synonyms:naive, innocent, trustful, credulous, guileless

Antonyms:artful

Inimical

harmful or limiting

"Unemployment is inimical to the growth of a country"

Synonyms:harmful, injurious, detrimental, deleterious, pernicious, damaging

Innoculate

immunize against a disease

Synonyms:immunize, vaccinate

Innocuous

not harmful or offensive

Synonyms:harmless, safe

Inordinate

unusually or disproportionately large; excessive

Synonyms:excessive, undue, unreasonable

Insidious

(of something unpleasant or dangerous) gradually and secretly causing harm

"Cancer is an insidious disease"

Synonyms:stealthy, subtle, deceitful, sly, wily, deceptive, perfidious