Innate (adjective) Present in a person from birth rather than learned later through practice.
Example: Some gymnasts train for years, but she seemed to have an innate sense of balance on the beam.
Mnemonic: 'In-' plus 'nate' (related to 'natal,' birth) — innate qualities are 'born in' you.
Innocuous (adjective) Harmless; unlikely to cause offense or damage.
Example: He thought his comment was innocuous, but it accidentally offended half the room.
Mnemonic: 'In-' (not) plus 'nocuous' (harmful, related to 'noxious') — innocuous is the safe opposite of noxious.
Instigate (verb) To set an action or conflict in motion, especially one that stirs up trouble.
Example: Investigators believed a rival gang had instigated the warehouse fire to scare off the competition.
Mnemonic: Picture someone using a long stick to poke a hornet's nest — to instigate is to jab at a situation until it erupts.
Integral (adjective) So necessary to a whole that the whole would be incomplete without it.
Example: Clear communication is integral to the success of any team project.
Mnemonic: It comes from the same root as integer, a whole number, so an integral part keeps the whole thing whole.
Intermittent (adjective) Starting and stopping again and again instead of happening continuously.
Example: Intermittent rain showers interrupted the outdoor graduation ceremony several times.
Mnemonic: Inter- (between) plus the Latin mittere (to send) - an intermittent signal is sent, stops, and is sent again with gaps between.
Intricate (adjective) Made up of many finely detailed parts that fit together in a complicated way.
Example: The watchmaker used tiny tweezers to assemble the intricate network of gears inside the clock.
Mnemonic: Picture a maze full of tricky little turns hidden inside the word — intricate designs are packed with tricky details.
Intrinsic (adjective) Belonging to something as one of its basic, essential features rather than added later.
Example: Many people argue that art has intrinsic value regardless of whether it can be sold.
Mnemonic: It starts with in, reminding you the quality is built in from within; its opposite, extrinsic, starts with ex, meaning from outside.
Intuitive (adjective) Understood immediately through instinct or feeling rather than step-by-step reasoning.
Example: The new phone's menu was so intuitive that users needed no instructions at all.
Mnemonic: Intuitive holds a small tuition inside it, as if the knowledge teaches itself to your mind instantly, with no lesson required.
Inundate (verb) To overwhelm someone or something with a huge, sudden amount.
Example: After the recipe went viral, the small bakery was inundated with online orders it could never fill in time.
Mnemonic: Shares a root with 'undulate' (wave motion) — to inundate is to hit someone with wave after wave until they're submerged.
Invariably (adverb) Always, in every single case, without exception.
Example: The professor invariably arrives ten minutes early to set up her lecture slides.
Mnemonic: In- (not) plus vary - something that happens invariably never varies from one time to the next.
Irrefutable (adjective) So strongly supported by evidence that it cannot reasonably be denied or proven false.
Example: The lab results provided irrefutable proof that the water source was contaminated.
Mnemonic: Ir- (not) plus refute (to prove wrong) - an irrefutable claim is one that nobody can successfully refute.
Iterate (verb) To repeat a process again and again, often refining it slightly each time.
Example: The design team iterated on the prototype a dozen times before settling on a final shape.
Mnemonic: It comes from the Latin iterum, meaning again - to iterate is simply to do something again, and then again.
Juxtapose (verb) To place two things side by side so that their differences or similarities become clear.
Example: The exhibit juxtaposed photos of the city from 1920 and today to show how much had changed.
Mnemonic: Latin 'juxta' means 'next to' — to juxtapose is literally to set things next to each other for comparison.
Judicious (adjective) Showing sound, sensible judgment, especially in practical decisions.
Example: A judicious investor spreads risk across several different assets.
Mnemonic: Shares a root with 'judge' and 'judgment' — a judicious person weighs decisions the way a wise judge weighs a case.
Kindle (verb) To start a fire, or figuratively to stir up a feeling or interest that grows stronger over time.
Example: A single documentary about coral reefs was enough to kindle her lifelong passion for marine biology.
Mnemonic: Picture striking a match to kindle a campfire — the same little spark can kindle curiosity in a person.
Lament (verb) To express deep sorrow or regret, often openly, about a loss or disappointment.
Example: The old fisherman would lament the disappearance of the salmon that once filled the river every spring.
Mnemonic: Think of a lament as a sad song set to a slow 'moment' — a lament is basically a melody of mourning.
Latent (adjective) Present but hidden or undeveloped, not yet showing itself.
Example: The test revealed a latent talent for music that she had never had the chance to explore.
Mnemonic: From Latin 'latere,' to lie hidden — latent qualities are lying in wait just beneath the surface.
Lucid (adjective) Clear and easy to understand; also, clear-headed and coherent in thought.
Example: Even in her nineties, my grandmother gave a lucid account of events from decades earlier.
Mnemonic: From Latin 'lux,' light — lucid thinking or writing lets light shine straight through, with nothing murky in the way.
Lucrative (adjective) Generating a substantial amount of profit or financial gain.
Example: The teenager's lawn-mowing business turned surprisingly lucrative once he added three new neighborhoods.
Mnemonic: Shares a root with 'lucre,' an old word for money — lucrative ventures are dripping with lucre.
Ludicrous (adjective) So absurd or unreasonable that it seems almost laughable.
Example: It was ludicrous to expect the whole class to finish the project in a single night.
Mnemonic: Picture something so silly it triggers ludicrous laughter — the word practically contains the giggle itself.
Malleable (adjective) Easily shaped, bent, or influenced.
Example: Gold is prized by jewelers because it is so malleable that it can be hammered into thin sheets.
Mnemonic: From Latin 'malleus,' hammer — malleable material can be hammered into a new shape without breaking.
Mandate (noun) An official instruction or authority given to a person or group to carry out a particular task.
Example: The newly elected mayor claimed a strong mandate to reform the city's public transport system.
Mnemonic: Notice the mand inside it, related to command, since a mandate is essentially a formal command to act.
Marginal (adjective) So small in size or effect that it barely matters.
Example: The new packaging design led to only a marginal increase in sales.
Mnemonic: Picture notes squeezed into the margin of a page; marginal things sit at the edge, barely inside what really counts.
Meager (adjective) Small in amount and insufficient for what is actually needed.
Example: The meager rations left each hiker with barely enough food to last the final two days of the trail.
Mnemonic: It rhymes with 'eager' but describes the opposite of plenty — an eager appetite meets a meager plate.
Mitigate (verb) To make a harmful or serious situation less severe.
Example: Wearing a helmet won't prevent every injury, but it can mitigate the damage in a crash.
Mnemonic: Rooted in Latin 'mitis,' meaning mild — to mitigate something is to make it milder.