delusionnoun [ C or U ]
uk/dɪˈluː.ʒən/us/dɪˈluː.ʒən/belief in something that is not true:
[ + that ] He's under the delusion that he will be promoted this year.
Thesaurus: synonyms and related words
Unreal things and unreality
- cloud cuckoo land
- delusional
- dummy
- escapism
- fairyland
- falsity
- fantasy
- fictionalize
- figment
- flight of fancy idiom
- illusion
- la-la land
- make-believe
- never-never land
- phantasm
- pie
- pie in the sky idiom
- pious
- unreal
- untruth
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Idiom(s)
delusions of grandeur