Meaning: Not taking a direct object.

Part of speech: adjective

Example: Intransitive verbs do not require an object.

Category: Language › Grammar

Synonyms:

• non-objective
• untransitive

Meaning: Administered through a vein.

Part of speech: adjective

Example: The medication was given intravenously.

Category: Medicine › Pharmacology

Synonyms:

• vein-related
• injected

Meaning: Fearless and adventurous.

Part of speech: adjective

Example: The intrepid explorer ventured into the unknown.

Category: General

Synonyms:

• fearless
• bold

Antonyms:

• timid
• cowardly

Meaning: The quality of being intricate or complex.

Part of speech: noun

Example: The intricacy of the design amazed everyone.

Category: Arts › Design

Synonyms:

• complexity
• detail

Antonyms:

• simplicity
• plainness

Meaning: Very detailed and complicated.

Part of speech: adjective

Example: The intricate patterns on the fabric were beautiful.

Category: Arts › Design

Synonyms:

• complex
• detailed

Antonyms:

• simple
• plain

Meaning: To arouse curiosity or interest.

Part of speech: verb/noun

Example: The mystery novel intrigued her.

Synonyms:

• fascinate
• plot

Meaning: Belonging naturally; essential.

Part of speech: adjective

Example: The intrinsic value of art is often subjective.

Category: Philosophy

Synonyms:

• inherent
• essential

Antonyms:

• extrinsic
• external

Meaning: The examination of one's own thoughts and feelings.

Part of speech: noun

Example: Introspection can lead to personal growth.

Category: Psychology

Synonyms:

• self-reflection
• self-examination

Meaning: Characterized by self-examination.

Part of speech: adjective

Example: He wrote an introspective essay about his life.

Category: Psychology

Synonyms:

• reflective
• self-analytical

Antonyms:

• outward
• extroverted

Meaning: To understand something instinctively.

Part of speech: verb

Example: She could intuit his feelings without him saying a word.

Category: Psychology

Synonyms:

• sense
• perceive

Meaning: Based on instinct rather than reasoning.

Part of speech: adjective

Example: She has an intuitive understanding of people's emotions.

Category: Psychology

Synonyms:

• instinctive
• natural

Antonyms:

• logical
• analytical

Meaning: A member of a group of indigenous peoples in the Arctic.

Part of speech: noun/adjective

Example: The Inuit have a rich cultural heritage.

Category: Culture › Indigenous Peoples

Synonyms:

• Eskimo
• Inupiat

Meaning: To overwhelm someone with things or people to deal with.

Part of speech: verb

Example: The office was inundated with applications.

Category: General

Synonyms:

• overwhelm
• flood

Meaning: To become accustomed to something unpleasant.

Part of speech: verb

Example: He became inured to the harsh conditions.

Category: General

Synonyms:

• accustomed
• hardened

Antonyms:

• sensitive
• vulnerable

Meaning: The state of being invalid.

Part of speech: noun

Example: The invalidity of the contract was established in court.

Category: Law › Contracts

Synonyms:

• nullity
• voidness

Meaning: Not changing; constant.

Part of speech: adjective

Example: The invariable rules of the game must be followed.

Category: General

Synonyms:

• constant
• unchanging

Antonyms:

• variable
• changeable

Meaning: Insulting or abusive language.

Part of speech: noun

Example: The politician's speech was filled with invective.

Category: Language › Rhetoric

Synonyms:

• abuse
• insult

Meaning: To speak or write about something with great hostility.

Part of speech: verb

Example: He began to inveigh against the new policy.

Category: Language › Rhetoric

Synonyms:

• protest
• rant

Meaning: To persuade someone to do something by deception.

Part of speech: verb

Example: She managed to inveigle him into joining the club.

Category: General

Synonyms:

• entice
• lure

Meaning: Opposite in effect or nature.

Part of speech: adjective/noun

Example: The inverse relationship between supply and demand is fundamental.

Category: Mathematics

Synonyms:

• opposite
• reverse

Meaning: The act of turning something upside down or reversing its position.

Part of speech: noun

Example: The inversion of the image made it hard to see.

Category: Mathematics

Synonyms:

• reversal
• flip

Meaning: To turn something upside down or inside out.

Part of speech: verb

Example: You need to invert the cake before serving.

Category: General

Synonyms:

• reverse
• flip

Meaning: The formal installation or appointment to an office or position.

Part of speech: noun

Example: The investiture of the new president was a grand ceremony.

Category: Politics

Synonyms:

• installation
• appointment

Meaning: Having a particular habit, activity, or interest that is long-established and unlikely to change.

Part of speech: adjective

Example: He is an inveterate gambler.

Category: Psychology

Synonyms:

• chronic
• habitual

Meaning: Likely to arouse resentment or anger in others.

Part of speech: adjective

Example: She made an invidious comparison between the two candidates.

Category: Arts

Synonyms:

• envy-inducing
• resentful

Meaning: To watch over students during an examination to prevent cheating.

Part of speech: verb

Example: Teachers are required to invigilate the exams.

Category: Education

Synonyms:

• supervise
• monitor

Meaning: Never to be broken or dishonored; sacred.

Part of speech: adjective

Example: The inviolable rights of citizens must be protected.

Category: Law

Synonyms:

• sacrosanct
• untouchable

Meaning: Free or safe from injury or violation.

Part of speech: adjective

Example: The agreement remained inviolate despite the challenges.

Category: Law

Synonyms:

• untouched
• unbroken

Meaning: The act of calling upon a deity or spirit for assistance.

Part of speech: noun

Example: The invocation was part of the ceremony.

Category: Religion

Synonyms:

• prayer
• appeal

Meaning: Incapable of being wounded, hurt, or damaged.

Part of speech: adjective

Example: The superhero seemed invulnerable to all attacks.

Category: Literature

Synonyms:

• impervious
• unassailable

Meaning: Investment made by a company or individual into the economy of their own country.

Part of speech: noun

Example: The government encourages inward investment to boost the economy.

Category: Business › Finance

Synonyms:

• domestic investment
• local investment

Meaning: Focusing on internal matters rather than external factors.

Part of speech: adjective

Example: The company's inward-looking approach limited its growth.

Category: Business

Synonyms:

• insular
• self-focused

Meaning: Aggressively bold or confrontational.

Part of speech: adjective

Example: The in-your-face advertising campaign caught everyone's attention.

Category: Marketing

Synonyms:

• confrontational
• bold

Meaning: A device that converts atoms or molecules into ions.

Part of speech: noun

Example: An ionizer can improve air quality.

Category: Technology

Synonyms:

• ion generator
• ion machine

Meaning: A very small amount; a bit.

Part of speech: noun

Example: There isn't an iota of doubt in my mind.

Category: Language

Synonyms:

• bit
• smidgen

Meaning: By that very fact or act.

Part of speech: adverb

Example: He was, ipso facto, the leader of the group.

Category: Law

Synonyms:

• therefore
• consequently

Meaning: Easily provoked to anger; irritable.

Part of speech: adjective

Example: His irascible nature made him difficult to work with.

Category: Psychology

Synonyms:

• irritable
• testy

Meaning: Showing luminous colors that seem to change when seen from different angles.

Part of speech: adjective

Example: The iridescent surface of the soap bubble was beautiful.

Category: Science › Optics

Synonyms:

• shimmering
• rainbow-colored

Meaning: A term used to describe the division between the Soviet bloc and the West during the Cold War.

Part of speech: noun

Example: The Iron Curtain fell after the end of the Cold War.

Category: Politics

Synonyms:

• barrier
• division

Meaning: Impossible to contradict, weaken, or change.

Part of speech: adjective

Example: She had an ironclad alibi for the night of the crime.

Category: Law

Synonyms:

• unassailable
• indisputable