Merriam-Webster Logo
SINCE 1828
Menu
×

An Encyclopædia Britannica Company

Thesaurus

optical

adjective

Synonyms and Antonyms of optical

  1. of, relating to, or used in vision an optical illusion that fools most people Synonyms ocular, optic, visualRelated Words seeing, sighted; focusing (also focussing)Antonyms nonvisual

Read the Latest from M-W

alt-5931949575ca5
'All the Feels,' All the Time
decimate-video
Is it wrong to use 'decimate' to mean 'destroy'?
image2144101468
Better Ways to Say "This Sucks"
istock-refers-to-this-as-a-tumble-of-strawberries-which-sounded-pretty-nice-to-us
June 2017 Words of the Day Quiz

Learn More about optical

  1. Dictionary: Definition of optical Medical Dictionary: Definition of optical Nglish: Translation of optical for Spanish speakers Britannica English: Translation of optical for Arabic speakers

Seen and Heard

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

show hide

Love words? Need even more definitions?

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

WORD OF THE DAY

threshold

play

the point at which something begins

Get Word of the Day daily email!

TRENDING NOW

  1. surrogate mother From TMZ to the dictionary.

  2. zealot A fanatical partisan

  3. stonewall to be uncooperative, obstructive, or evasive

  4. scurrilous Containing obscenities, abuse, or slander

  5. depose That word might not mean what you think it means.

SEE ALL

Love words? Need even more definitions?

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

Words at Play

image2144101468
That Sucks Word Alternatives

Your day is the worst. Your vocabulary is the best.

alt-5931949575ca5
'All the Feels,' All the Time

Once more, with 'feels'

alt-59480e09b8844
A Pineapple Is An Apple (Kind Of)

Pineapple once had a different, more internationally common name.

alt-594938b88b98e
Read This to Get 'Smart'

A thinking person's guide

Ask the Editors

decimate-video
Is it wrong to use 'decimate' to mean 'destroy'?

Language changes

serial-comma
The Serial Comma

Why don't they call it the Merriam-Webster comma?

video-irregardless-grammar-peeve-blend-of-the-synonyms-irrespective-and-regardless
Irregardless

It is in fact a real word (but that doesn't mean you should use it).

video-moose-goose-weird-plurals
Weird Plurals

One goose, two geese. One moose, two... moose. What's up with that?

Word Games

istock-refers-to-this-as-a-tumble-of-strawberries-which-sounded-pretty-nice-to-us
June 2017 Words of the Day Quiz

Summer's first WOTD quiz.

Take the quiz
alt-5941ad7527c3c
Yearbook Superlatives Quiz

Is that your picture under "Largest Vocabulary"?

Take the quiz
True or False
True or False?

Test your knowledge - and maybe learn something along the way.

Take the quiz
Word Winder's CrossWinder
Word Winder's CrossWinder

A game of winding words.

Play the game