1,400 new words in our dictionary! — Parasocial, glow-up, promposal & more
1,400 new words in our dictionary! — More

igneous

adjective

Definition of igneousnext
as in ardent
having to do with or suggestive of fire an igneous desert atmosphere igneous events such as volcanic eruptions

Related Words

Relevance

Dissimilar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of igneous Olivine is a mineral primarily found in igneous rocks (rocks created through the solidification and crystallization of molten rock) that are rich in magnesium and iron. — Lydia Mansel, Travel + Leisure, 26 May 2026 After remotely examining the rock’s chemistry, researchers learned Arethusa is largely igneous minerals dating even further back than the Jezero Crater itself. — Andrew Paul, Popular Science, 13 May 2026 Formed from the uplift of igneous and metamorphic rock and carved by the Colorado River through erosion, the Grand Canyon remains one of America's natural treasures. — Michael Salerno, AZCentral.com, 8 May 2026 These curious metallic lumps, sometimes stratified like igneous rock can provide clear ideas of what the final produce may be like. — David Phelan, Forbes.com, 29 Apr. 2026 See All Example Sentences for igneous
Recent Examples of Synonyms for igneous
  1. ardent
  2. molten
  3. heated
  4. hot
  5. fiery
  6. tropical
  7. boiling
  8. searing
Adjective
  • This is the creation of two of the most ardent and knowledgeable fans of Algren.
    — Rick Kogan, Chicago Tribune, 15 Sep. 2026
  • His ensuing ardent adoration sends the town into a tizzy in this hilarious comedy.
    — Randy Myers, Mercury News, 2 Sep. 2026
Definition of ardent
Adjective
  • This specific salt directly links today’s commercial efforts to the birth of molten salt technology sixty years ago.
    — Aman Tripathi, Interesting Engineering, 19 Sep. 2026
  • There are molten metallics in approachable shades (gold, silver, bronze) and artsier ones too (rainbow chrome, lilac, fuchsia).
    — Elizabeth Siegel, Allure, 17 Sep. 2026
Definition of molten
Adjective
  • Former President Barack Obama will deliver a speech Saturday at the Overland Park Convention Center but won’t campaign in Kansas’s heated political races.
    — Jack Harvel, Kansas City Star, 22 Sep. 2026
  • OpenAI finished the job less than a day later—timing that has led to a heated dispute between the latter two mathematicians and the company.
    — Joseph Howlett, Scientific American, 21 Sep. 2026
Definition of heated
Adjective
  • Tomica tells us Tiny Traitor Katie is reaching the Love Island crew (hot, young people).
    — Alice Burton, Vulture, 25 Sep. 2026
  • The technology is initially aimed at simple-cycle gas turbines, which generate electricity directly from hot combustion gases but release substantial amounts of remaining heat through their exhaust.
    — Neetika Walter, Interesting Engineering, 24 Sep. 2026
Definition of hot
Adjective
  • The September full moon, commonly known as the harvest moon, is almost here, bringing a fiery burst of energy as the fall season gets underway.
    — ABC News, ABC News, 24 Sep. 2026
  • The fiery crash in the 6500 block of Nova Drive east of College Avenue involved a utility pole and caused a power outage in the area.
    — Miami Herald staff, Miami Herald, 24 Sep. 2026
Definition of fiery
Adjective
  • Dozens of species roamed and rutted on a tropical Earth, from the pig-sized Menoceras to the significantly larger Paraceratherium linxiaense, an animal almost as large as one of London’s red double-decker buses.
    — Literary Hub, Literary Hub, 22 Sep. 2026
  • An upper-level low is helping to pump in deep tropical moisture, and a southwesterly flow will help to steer much of the wet weather along our east coast metro areas.
    — Lissette Gonzalez, CBS News, 21 Sep. 2026
Definition of tropical
Adjective
  • More humane methods of killing lobsters pre-boiling include a sharp knife through the head, electrical stunning, or freezing.
    — semafor.com, semafor.com, 29 Dec. 2025
  • Agrawal and her team studied ionic liquids — salts that are liquid at sub-boiling temperatures (below 212 degrees Fahrenheit, or 100 degrees Celsius) — as a potential hospitable environment for life.
    — Stefanie Waldek, Space.com, 13 Aug. 2025
Definition of boiling
Adjective
  • Every time our case is in the news, I am returned to that terrible day and the searing pain of the weeks, months and years that followed.
    — Sharon Risher, New York Daily News, 15 Sep. 2026
  • In some ways, their combination of searing serves and counter-punching defense was revolutionary.
    — Matthew Futterman, New York Times, 14 Sep. 2026
Definition of searing

Browse Nearby Words

ifs
igneous
ignes fatui
See all Nearby Words

Cite this Entry

“Igneous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/igneous. Accessed 25 Sep. 2026.

Copy Citation
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of tactile

See Definitions and Examples »

Popular in Grammar & Usage

See More

Do You Need a New Language Peeve?

More Commonly Mispronounced Words

Why do we use apostrophes to show possession?

Merriam-Webster’s Great Big List of Words You Love to Hate

'A' or 'an'? What about before 'h'? An Indefinite Article Guide
See More

Popular in Wordplay

See More

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Back to School Vocabulary

14 Phobias You Probably Haven't Heard Of

The Words of the Week - Sept. 25
See More

Popular

See More

Do You Need a New Language Peeve?

The Longest Long Words List

9 Words That Sound Like Insults But Aren't
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
image of the words cracker fly and sale arranged in a triangle with the word fire in the middle
Triple Play Quiz Find the word that pairs with each of the three g...
See All