self-deceived

[self-di-seevd, self-]
adjective
  1. holding an erroneous opinion of oneself, one's own effort, or the like.
  2. 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.

Origin of self-deceived

First recorded in 1665–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for self-deceived

Historical Examples of self-deceived