imaginary

 
Pronunciation: /ɪˈmadʒɪn(ə)ri/

adjective

  • 1existing only in the imagination: Chris had imaginary conversations with her
  • 2 Mathematics (of a number or quantity) expressed in terms of the square root of a negative number (usually the square root of −1, represented by i or j). See also complex.

Derivatives

imaginarily

adverb

Origin:

late Middle English: from Latin imaginarius, from imago, imagin- 'image'

Spelling help

Remember that imaginary ends in -ary.