Meaning: Uncertain; indecisive.

Part of speech: adjective

Example: He was irresolute about which path to take.

Category: Arts

Synonyms:

• indecisive
• uncertain

Antonyms:

• decisive
• determined

Meaning: Not taking something into account; regardless of.

Part of speech: adjective

Example: Irrespective of the weather, the event will proceed.

Category: Politics

Synonyms:

• regardless
• without regard

Antonyms:

• considering
• taking into account

Meaning: Impossible to recover or regain.

Part of speech: adjective

Example: The data was irretrievable after the crash.

Category: Technology

Synonyms:

• irrecoverable
• lost

Antonyms:

• recoverable
• retrievable

Meaning: Not able to be undone or altered.

Part of speech: adjective

Example: The damage to the environment is irreversible.

Category: Science

Synonyms:

• permanent
• irreparable

Antonyms:

• reversible
• temporary

Meaning: A substance that causes irritation.

Part of speech: noun

Example: Dust can be an irritant for people with allergies.

Category: Health

Synonyms:

• nuisance
• annoyance

Antonyms:

• soothing
• calm

Meaning: Integrated Services Digital Network, a set of communication standards for digital transmission.

Part of speech: noun

Example: ISDN allows for high-quality voice and data transmission.

Category: Technology

Synonyms:

• digital network
• communication standard

Meaning: A very small island.

Part of speech: noun

Example: The boat anchored near a tiny islet.

Category: Geography

Synonyms:

• small island
• rock

Meaning: A policy of remaining apart from the affairs of other groups.

Part of speech: noun

Example: Isolationism was a significant aspect of U.S. foreign policy.

Category: Politics

Synonyms:

• seclusion
• detachment

Antonyms:

• involvement
• engagement

Meaning: The price at which new shares are offered to the public.

Part of speech: noun

Example: The issue price of the stock was set at $10.

Category: Business › Finance

Synonyms:

• offering price
• subscription price

Meaning: A narrow strip of land connecting two larger land areas.

Part of speech: noun

Example: The isthmus of Panama connects North and South America.

Category: Geography

Synonyms:

• narrow land
• connector

Meaning: A fashionable young woman who is popular in social circles.

Part of speech: noun

Example: She is considered the it-girl of the fashion world.

Category: Arts › Fashion

Synonyms:

• trendsetter
• fashionista

Meaning: Traveling from place to place, especially for work.

Part of speech: adjective

Example: He led an itinerant lifestyle as a musician.

Category: Travel

Synonyms:

• nomadic
• roaming

Antonyms:

• settled
• stationary

Meaning: Intrauterine device, a form of birth control.

Part of speech: noun

Example: She decided to get an IUD for contraception.

Category: Medicine

Synonyms:

• contraceptive device
• birth control

Meaning: In vitro fertilization, a medical procedure for assisted reproduction.

Part of speech: noun

Example: IVF has helped many couples conceive.

Category: Medicine

Synonyms:

• fertility treatment
• assisted reproduction

Meaning: a decorative frill or ruffle on a garment

Part of speech: noun

Example: She wore a blouse with a beautiful jabot.

Category: Fashion

Synonyms:

• ruffle
• frill

Meaning: a phrase used to indicate something happens quickly

Part of speech: noun

Example: He was gone before you could say Jack Robinson.

Category: Language

Meaning: a term used in some games

Part of speech: noun

Example: He played a round of jack sie with his friends.

Category: Games

Meaning: a game where players draw straws

Part of speech: noun

Example: They played jack straw at the party.

Category: Games

Meaning: a sailor

Part of speech: noun

Example: Jack Tar is often used to refer to sailors in literature.

Category: Nautical

Synonyms: sailor

Meaning: a mischievous child or person

Part of speech: noun

Example: That little jackanapes is always causing trouble.

Category: Language

Synonyms:

• rascal
• scamp

Meaning: a young man working on a ranch in Australia

Part of speech: noun

Example: The jackaroo learned to ride horses and manage cattle.

Category: Work › Agriculture

Synonyms: ranch hand

Meaning: a type of military boot

Part of speech: noun

Example: The soldier wore a heavy jackboot.

Category: Clothing

Synonyms: boot

Meaning: a tropical tree known for its purple flowers

Part of speech: noun

Example: The jacaranda tree blooms beautifully in spring.

Category: Nature › Botany

Synonyms: tree

Meaning: tired or bored after having too much of something

Part of speech: adjective

Example: He felt jaded after years of the same routine.

Category: Emotions

Synonyms:

• weary
• bored

Antonyms: enthusiastic

Meaning: a sharp projection or notch

Part of speech: noun

Example: The jag on the edge of the metal was dangerous.

Category: Geometry

Synonyms:

• notch
• spike

Meaning: Having a cheerful and lively manner.

Part of speech: adjective

Example: He wore a jaunty hat that made him look stylish.

Category: Arts › Fashion

Synonyms:

• cheerful
• lively

Antonyms:

• dull
• sad

Meaning: The bone that forms the structure of the jaw.

Part of speech: noun

Example: The jaw bone is crucial for chewing.

Category: Anatomy › Facial Structure

Synonyms: mandible

Meaning: Extremely surprising or impressive.

Part of speech: adjective

Example: The view from the mountain was jaw-dropping.

Category: Arts › Visual Arts

Synonyms:

• astonishing
• amazing

Meaning: The outline of the lower jaw.

Part of speech: noun

Example: She has a strong jawline that enhances her features.

Category: Anatomy › Facial Structure

Synonyms: jaw structure

Meaning: To make something more interesting or lively.

Part of speech: verb

Example: They decided to jazz up the presentation with colorful graphics.

Category: Arts › Performance

Synonyms:

• enhance
• liven up

Meaning: In a manner showing jealousy.

Part of speech: adverb

Example: He watched her jealously as she talked to another guy.

Category: Emotions › Feelings

Synonyms: enviously

Meaning: To put something at risk or in danger.

Part of speech: verb

Example: His actions could jeopardize the project.

Category: Business › Risk Management

Synonyms:

• endanger
• risk

Meaning: Danger of loss, harm, or failure.

Part of speech: noun

Example: The company is in jeopardy of going bankrupt.

Category: Business › Risk Management

Synonyms:

• danger
• risk

Meaning: A very deep black color.

Part of speech: adjective

Example: Her hair was jet black and shiny.

Category: Color

Synonyms: deep black

Meaning: A wealthy and fashionable group of people who travel frequently.

Part of speech: noun

Example: The jet set often attends exclusive parties around the world.

Category: Travel › Lifestyle

Synonyms: glamorous travelers

Meaning: Living a lifestyle characterized by frequent travel, especially by jet.

Part of speech: adjective

Example: She enjoys her jet-setting lifestyle, visiting new countries every month.

Category: Travel › Lifestyle

Synonyms:

• glamorous
• luxurious

Meaning: Decorated with jewels or gems.

Part of speech: adjective

Example: She wore a jewelled crown at the ceremony.

Category: Arts › Jewelry

Synonyms:

• ornate
• decorated

Meaning: The value or importance of a job.

Part of speech: noun

Example: He questioned the job worth of his current position.

Category: Business › Employment

Synonyms:

• value of work
• importance of job

Meaning: Characterized by joking; humorous.

Part of speech: adjective

Example: His jocular nature made everyone feel at ease.

Category: Arts › Literature

Synonyms:

• humorous
• funny

Antonyms: serious

Meaning: A cheerful enjoyment of life; an exultation of spirit.

Part of speech: noun

Example: Her joie de vivre was contagious at the party.

Category: Arts › Philosophy

Synonyms:

• zest for life
• enthusiasm