imaginary, fanciful, visionary, fantastic, chimerical, quixotic mean unreal or unbelievable. imaginary applies to something which is fictitious and purely the product of one's imagination.

IMAGINARY definition: existing only in the imagination or fancy; not real; fancied. See examples of imaginary used in a sentence.

IMAGINARY definition: 1. Something that is imaginary is created by and exists only in the mind: 2. Something that is…. Learn more.

An imaginary person, place, or thing exists only in your mind or in a story, and not in real life. Lots of children have imaginary friends. ...creating an imaginary world.

Definition of imaginary adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Define imaginary. imaginary synonyms, imaginary pronunciation, imaginary translation, English dictionary definition of imaginary. adj. 1. Having existence only in the imagination; unreal.

There are ten meanings listed in OED's entry for the word imaginary, four of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Jan 20, 2026 · Adjective imaginary (comparative more imaginary, superlative most imaginary) Existing only in the imagination.

Anything imaginary is not real: it only exists in someone's head. We hate to ruin your day, but unicorns are imaginary.

The two groups were separated by an imaginary line down the middle of the room.