Dictionary.com
Thesaurus.com
Synonyms

immense

American  
[ih-mens] / ɪˈmɛns /

adjective

  1. vast; huge; very great.

    an immense territory.

    Synonyms:
    extensive
  2. immeasurable; boundless.

  3. Informal. splendid.

    You did an immense job getting the project started.


immense British  
/ ɪˈmɛns /

adjective

  1. unusually large; huge; vast

  2. without limits; immeasurable

  3. informal very good; excellent

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See huge.

Other Word Forms

  • immensely adverb
  • immenseness noun

Etymology

Origin of immense

First recorded in 1400–50; late Middle English, from Latin immēnsus “huge, boundless, immeasurable,” equivalent to im- “un-” + mēnsus, past participle of mētīrī “to measure”; see im- 2

Explanation

Immense means very large in size, amount, or degree. You might describe the ocean as immense, or your homework load, or the slice of cake your brother took, leaving you a tiny sliver. This word has an immense number of near synonyms: huge, great, enormous, vast, gigantic, colossal, mammoth, copious, tremendous are a few of the more common ones. If you're having immense difficulty deciding which word to use, just plain "very big" might do.

Keep Reading on Vocabulary.com

Vocabulary lists containing immense

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Other immense sculptures of pages show redacted sections of the document in massive black bars, magnifying the hostility of government censorship as massive obstacles constructed by many small players and devices.

From Salon • Apr. 26, 2026

Even so, these changes unfold over immense timescales.

From Science Daily • Apr. 25, 2026

“The downsides for speaking up are so immense, I almost can’t imagine why anyone chooses to do it.”

From Los Angeles Times • Apr. 23, 2026

Fusion is the process of fusing hydrogen nuclei together, which releases immense amounts of energy.

From BBC • Apr. 20, 2026

Having been given full instructions by Matthias, Jess stood at the base of the immense Abbey building.

From "Redwall" by Brian Jacques