'Imaginary' definitions:
Definition of 'imaginary'
From: WordNet
adjective
Not based on fact; unreal; "the falsehood about some fanciful secret treaties"- F.D.Roosevelt; "a small child's imaginary friends"; "to create a notional world for oneself" [syn: fanciful, imaginary, notional]
noun
(mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1 [syn: complex number, complex quantity, imaginary number, imaginary]
Definition of 'Imaginary'
From: GCIDE
- Imaginary \Im*ag"i*na*ry\, n. (Alg.) An imaginary expression or quantity. [1913 Webster]
Definition of 'Imaginary'
From: GCIDE
- Imaginary \Im*ag"i*na*ry\, a. [L. imaginarius: cf. F. imaginaire.] Existing only in imagination or fancy; not real; fancied; visionary; ideal. [1913 Webster]
- Wilt thou add to all the griefs I suffer Imaginary ills and fancied tortures? --Addison. [1913 Webster]
- Imaginary calculus See under Calculus.
- Imaginary expression or Imaginary quantity (Alg.), an algebraic expression which involves the impossible operation of taking the square root of a negative quantity; as, [root]-9, a + b [root]-1.
- Imaginary points, lines, surfaces, etc. (Geom.), points, lines, surfaces, etc., imagined to exist, although by reason of certain changes of a figure they have in fact ceased to have a real existence.
- Syn: Ideal; fanciful; chimerical; visionary; fancied; unreal; illusive. [1913 Webster]
Synonyms of 'imaginary'
From: Moby Thesaurus
- abstract,
- air-built,
- airy,
- algorismic,
- algorithmic,
- aliquot,
- apparent,
- apparitional,
- autistic,
- Barmecidal,
- Barmecide,
- cardinal,
- chimeric,
- chimerical,
- cloud-built,
- deceptive,
- decimal,
- delusional,
- delusionary,
- delusive,
- delusory,
- dereistic,
- differential,
- digital,
- dreamlike,
- dreamy,
- erroneous,
- ethereal,
- even,
- exponential,
- fallacious,
- false,
- fancied,
- fanciful,
- fantastic,
- fatuitous,
- fatuous,
- fictional,
- fictitious,
- fictive,
- figmental,
- figural,
- figurate,
- figurative,
- finite,
- fractional,
- gaseous,
- gossamery,
- hallucinatory,
- hypothetical,
- ideal,
- illusional,
- illusionary,
- illusive,
- illusory,
- imaginational,
- imaginative,
- imagined,
- immaterial,
- impair,
- impossible,
- infinite,
- integral,
- irrational,
- legendary,
- logarithmic,
- logometric,
- made-up,
- merely nominal,
- misleading,
- mythic,
- mythical,
- mythological,
- negative,
- nonexistent,
- not real,
- notional,
- numeral,
- numerary,
- numerative,
- numeric,
- odd,
- ordinal,
- ostensible,
- pair,
- phantasmagoric,
- phantasmal,
- phantasmic,
- phantom,
- phantomlike,
- positive,
- possible,
- prime,
- quixotic,
- radical,
- rarefied,
- rational,
- real,
- reciprocal,
- seeming,
- self-deceptive,
- self-deluding,
- shadowy,
- specious,
- spectral,
- spirituous,
- submultiple,
- subtile,
- subtle,
- supposititious,
- surd,
- tenuous,
- transcendental,
- unactual,
- unfounded,
- unreal,
- unrealistic,
- unsubstantial,
- untrue,
- vaporous,
- visional,
- visionary,
- windy