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imaginary

[ ih-maj-uh-ner-ee ]
/ ɪˈmædʒ əˌnɛr i /
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adjective

existing only in the imagination or fancy; not real; fancied: an imaginary illness; the imaginary animals in the stories of Dr. Seuss.

noun, plural im·ag·i·nar·ies.

Mathematics. imaginary number.

QUIZZES

QUIZ YOURSELF ON “THEIR,” “THERE,” AND “THEY’RE”

Are you aware how often people swap around “their,” “there,” and “they’re”? Prove you have more than a fair grasp over these commonly confused words.
Question 1 of 7
Which one of these commonly confused words can act as an adverb or a pronoun?

Origin of imaginary

1350–1400; Middle English <Latin imāginārius, equivalent to imāgin-, (stem of imāgō) image + -ārius-ary

OTHER WORDS FROM imaginary

WORDS THAT MAY BE CONFUSED WITH imaginary

imaginary , imaginative
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for imaginary

British Dictionary definitions for imaginary

imaginary
/ (ɪˈmædʒɪnərɪ, -dʒɪnrɪ) /

adjective

existing in the imagination; unreal; illusory
maths involving or containing imaginary numbers. The imaginary part of a complex number, z, is usually written Im z

Derived forms of imaginary

imaginarily, adverbimaginariness, noun
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
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