(noun, adjective)


1. not based on fact; existing only in the imagination

- a small child's imaginary friends

Similar word(s): unreal, fanciful, notional

Sentences with imaginary as an adjective:

- She isn't real, she's imaginary.


1. (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1

Definition categories: quantity, number