What's the difference between
and
Enter two words to compare and contrast their definitions, origins, and synonyms to better understand how those words are related.

Imaginary vs Undefined - What's the difference?

imaginary | undefined |

As adjectives the difference between imaginary and undefined

is that imaginary is existing only in the imagination while undefined is lacking a definition or value.

As a noun imaginary

is imagination; fancy.

imaginary

English

Adjective

(en adjective)
  • existing only in the imagination
  • * Addison
    • Wilt thou add to all the griefs I suffer / Imaginary ills and fancied tortures?
  • (mathematics) of a number, having no real part; that part of a complex number which is a multiple of the square root of -1.

    • Derived terms

    * imaginarily * imaginariness

    Noun

    (imaginaries)
  • Imagination; fancy.
  • * 2002 , , The Great Nation , Penguin 2003, p. 324:
    • By then too Mozart's opera, from Da Ponte's libretto, had made Figaro a stock character in the European imaginary and set the whole Continent whistling Mozartian airs and chuckling at Figaresque humour.
  • (mathematics) An imaginary quantity.

    • External links

    * (Imaginary number)

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined