Length ranks your synonyms based on character count.
Informal words should be reserved for casual, colloquial communication.
More words related to optical illusion
noun. misconception, misbelief
noun. false appearance; false belief
- false impression
- figment of imagination
- fool's paradise
- head trip
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.Cite This Source