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.
Origin of imaginary
Synonyms for imaginary
Antonyms for imaginary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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
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