self-deceived
American
[self-di-seevd, self-]
/ ˈsɛlf dɪˈsivd, ˌsɛlf- /
adjective
-
holding an erroneous opinion of oneself, one's own effort, or the like.
-
being mistaken, forming an erroneous judgment, etc., in one's own mind, as from careless or wishful thinking.
If you thought my friendship was love, you were self-deceived.
Etymology
Origin of self-deceived
First recorded in 1665–75
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.