- to conceive fanciful or extravagant notions, ideas, suppositions, or the like (often followed by about): to fantasize about the ideal job.
- to create in one's fancy, daydreams, or the like; imagine: to fantasize a trip through space.
Also especially British, fan·ta·sise.
Origin of fantasize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (when tr, takes a clause as object) to conceive extravagant or whimsical ideas, images, etc
- (intr) to conceive pleasant or satisfying mental images
Word Origin and History for fantasise
Online Etymology Dictionary, © 2010 Douglas Harper