Thesaurus

optical illusion

noun

Synonyms & Antonyms of optical illusion

an image that tricks a person's vision
  • Some may dismiss what we witnessed that night as an optical illusion, but we firmly believe it was a UFO.

Synonyms & Near Synonyms for optical illusion

Antonyms & Near Antonyms for optical illusion

See the Dictionary Definition 

Keep scrolling for more

Learn More about optical illusion

Time Traveler for optical illusion

Time Traveler

The first known use of optical illusion was in 1763

See more words from the same year

Cite this Entry

“Optical illusion.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/optical%20illusion. Accessed 7 Aug. 2020.

Keep scrolling for more

More from Merriam-Webster on optical illusion

Dictionary: Definition of optical illusion

Medical Dictionary: Definition of optical illusion

Britannica.com: Encyclopedia article about optical illusion

Comments on optical illusion

What made you want to look up optical illusion? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

July 2020 Words of the Day Quiz

  • papercraft sunset
  • Which is a synonym of mien?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!