imaginary place ima·gi·na·ryplace uncommon noun 1. a place that exists only in imagination; a place said to exist in fictional or religious writings Synonymsimaginary placemythical place Related words Broader terms imagination Narrower terms afterworldAnnwfnAsgardAtlantisBrobdingnagcloud-cuckoo-landCockaigneEl Dorado WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.