illusory
Definitions
Based on or producing illusion; deceptive.
Not real; having the nature of an illusion.
Examples
The sense of security provided by the temporary ceasefire proved to be entirely illusory.
He chased the illusory dream of fame, only to realize that true happiness lay elsewhere.
Synonyms
deceptive imaginary fictitious misleading unreal fallacious chimerical
Antonyms
real genuine authentic factual tangible verifiable substantial