A number that can be expressed in terms of i (the square root of −1). Mathematically, such a number can be written a + bi, where a and b are real numbers. An example is 4 + 5 i.

A type of complex number in which the multiple of i (the square root of −1) is not equal to zero. Examples of imaginary numbers include 4 i and 2 − 3 i , but not 3 + 0 i (which is just 3).

Find another word for imaginary. In this page you can discover 93 synonyms, antonyms, idiomatic expressions, and related words for imaginary, like: unreal, fancied, nonexistent, ideal, fanciful, shadowy, visionary, chimerical, delusive, imagined and factual.

He paused at the door and mimed a jump shot at an imaginary hoop.

It is an imaginary history of the patriarchs and their descendants.

I can get into enough trouble without people squeezing imaginary insults out of my words.

It may be remarked that we cannot with a real point and line obtain the node with two imaginary tangents (conjugate or isolated point or acnode), nor again the real double tangent with two imaginary points of contact; but this is of little consequence, since in the general theory the distinction between real and imaginary is not attended to.

All that is recorded, in any literature, of what pretend to be the actual words spoken by living or imaginary people is of the nature of dialogue.