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.

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

imaginary (ɪˈmædʒɪnərɪ; -dʒɪnrɪ) adj 1. existing in the imagination; unreal; illusory

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.

im•ag•i•nar•y (i maj′ ə ner′ē), adj., n., pl. -ries. adj. existing only in the imagination or fancy; not real; fancied: an imaginary illness; the imaginary animals in the stories of Dr. Seuss. n. Mathematics See …

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

From Longman Dictionary of Contemporary English i‧ma‧gi‧na‧ry /ɪˈmædʒənəri $ -neri/ adjective not real, but produced from pictures or ideas in your mind → fictional As she listened, she played an …