Dictionary.com
Thesaurus.com
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.

Keep Reading on Vocabulary.com

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.

See Examples For:

First and foremost, many businesses that went all-in on AI have discovered that the vaunted cost-savings its promoters promised have been chimerical at best.

From Los Angeles Times Jun. 23, 2026

Ms. Mori’s creations look like chimerical species — hybrids of barnacles and cumulus clouds, a baobab and a weeping willow, a waterlily and fiddlehead ferns, sea urchin spines and a swarm of starlings.

From New York Times Mar. 2, 2023

Two instances in recent culture capture the uncertainty of our present moment, forcing us to reconsider the locus of the chimerical enemy.

From New York Times Feb. 16, 2023

Why are so many chimerical Shangri-Las fraught with conflict?

From Los Angeles Times Jan. 9, 2023

But the AEC’s dream of thermonuclear research blooming via a collegial relationship between Los Alamos and Livermore proved chimerical.

From "Big Science" by Michael Hiltzik

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training