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Synonyms

chimerical

American  
[ki-mer-i-kuhl, -meer-, kahy-] / kɪˈmɛr ɪ kəl, -ˈmɪər-, kaɪ- /
Also chimeric

adjective

  1. unreal; imaginary; visionary.

    a chimerical terrestrial paradise.

    Synonyms:
    fantastic, illusory
    Antonyms:
    real
  2. wildly fanciful; highly unrealistic.

    a chimerical plan.


chimerical British  
/ kɪ-, kaɪˈmɛrɪkəl, kaɪˈmɛrɪk /

adjective

  1. wildly fanciful; imaginary

  2. given to or indulging in fantasies

"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

Other Word Forms

Etymology

Origin of chimerical

First recorded in 1630–40; chimer(a) + -ical

Explanation

Use the adjective chimerical to describe something that is wildly fanciful or imaginative — like the chimerical illustrations of magical creatures in a children's book. A chimera was a fire-breathing monster from Greek mythology made from three different animals: a lion at its head, a goat in the middle, and a serpent at the end. The first surviving mention of the beast is in Homer's The Iliad. From this fantastical creature, English created the adjective chimerical to describe wild figments of the imagination.

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Vocabulary lists containing chimerical

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.

Projections of economic gains from major sporting events are typically optimistic, euphoric, chimerical or conjectural.

From Los Angeles Times • Jun. 19, 2025

Claims made for the abilities or perils of AI chatbots have often turned out to be mistaken or chimerical.

From Los Angeles Times • Jul. 13, 2023

It is only natural, then, that in an age of extreme guilt, when in very tangible ways we feel as if we have failed the Earth itself, the chimerical enemy should be all too human.

From New York Times • Feb. 16, 2023

In his eyes, though, speed is not where true value lies in a social media world, and particularly in that portion of it devoted to soccer’s chaotic, contradictory and often chimerical transfer market.

From New York Times • Jan. 24, 2022

However many dreams she had navigated, whatever chimerical fancies she had witnessed, she had never interacted.

From "Strange the Dreamer" by Laini Taylor