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  1. vast; huge; very great: an immense territory.
  2. immeasurable; boundless.
  3. Informal. splendid: You did an immense job getting the project started.
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Origin of immense

1400–50; late Middle English < Latin immēnsus, equivalent to im- im-2 + mēnsus past participle of mētīrī to measure
Related formsim·mense·ly, adverbim·mense·ness, noun


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1. extensive. See huge.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for immensely

Contemporary Examples

Historical Examples

  • They were immensely excited, not at all awestricken, entirely friendly.

    The Leopard Woman

    Stewart Edward White

  • Finding the Dog able to do it immensely, made the match, and heavily backed the Dog.

    Little Dorrit

    Charles Dickens

  • If you will be a little friendly, they would like it immensely.

    Roden's Corner

    Henry Seton Merriman

  • They were immensely amused and interested with any particulars about her.

  • Our ladies are celebrated for their beauty, and are immensely popular, I can assure you.

    Homeward Bound

    James Fenimore Cooper

British Dictionary definitions for immensely


  1. unusually large; huge; vast
  2. without limits; immeasurable
  3. informal very good; excellent
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Derived Formsimmensely, adverbimmenseness, noun

Word Origin

C15: from Latin immensus, literally: unmeasured, from im- (not) + mensus measured, from mētīrī to measure
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

Word Origin and History for immensely


1650s, from immense + -ly (2).

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early 15c., from Middle French immense (mid-14c.), from Latin immensus "immeasurable, boundless," from assimilated form of in- "not, opposite of" (see in- (1)) + mensus "measured," past participle of metiri (see measure).

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Online Etymology Dictionary, © 2010 Douglas Harper