illusionnoun
uk/ɪˈluː.ʒən/us/ɪˈluː.ʒən/C2 [ C or U ] an idea or belief that is not true:
He had no illusions about his talents as a singer.
I'm under no illusions (= I understand the truth) about the man I married.
My boss is labouring under the illusion that (= wrongly believes that) the project will be completed on time.
C2 [ C ] something that is not really what it seems to be:
A large mirror in a room can create the illusion of space.
The impression of calm in the office is just an illusion.
Thesaurus: synonyms and related words
Unreal things and unreality
- cloud cuckoo land
- delusion
- delusional
- dummy
- escapism
- false hopes
- falsity
- fantasy
- fictionalize
- figment
- idealist
- la-la land
- make-believe
- never-never land
- phantasm
- pie
- pie in the sky idiom
- pious
- unreal
- untruth
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You can also find related words, phrases, and synonyms in the topics:
Hiding and disguising