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Definitions

opaque

[oh-peyk] / oʊˈpeɪk /
ADJECTIVE
clouded, muddy
Synonyms
STRONGEST
blurred cloudy dirty dull frosty gloomy hazy impenetrable murky thick
WEAK
dark darkened dim dusky filmy foggy fuliginous lusterless misty muddied nontranslucent nontransparent nubilous obfuscated shady smoky sooty turbid
Antonyms
STRONGEST
bright clear intelligent light luminous smart sparkling sunny thin vivacious
WEAK
crystal-clear easy lucid translucent transparent unambiguous unclouded understandable
ADJECTIVE
hard to understand
Synonyms
STRONGEST
arcane equivocal incomprehensible uncertain unclear unintelligible vague
WEAK
abstruse amphibological baffling concealed cryptic difficult enigmatic imperceptive nubilous obscure obtuse perplexing purblind tenebrous unfathomable
Antonyms
STRONGEST
certain clear comprehensible definite determined intelligible sure understandable
WEAK
crystal-clear easy lucid translucent transparent unambiguous unclouded

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Arbitration has also become a massive phenomenon, siphoning countless cases off from the courts into a shadowy, opaque system that nobody can ever truly fully observe.

From Slate • Apr. 27, 2026

She said that she believes seeing the documents in person can bring clarity to issues that have become opaque.

From Los Angeles Times • Apr. 24, 2026

Iran, China and an array of middlemen have evaded U.S. sanctions for years by shipping oil on aging tankers with opaque records.

From The Wall Street Journal • Apr. 23, 2026

The market was growing fast, leverage was opaque and connections back to the regulated banks were harder to see.

From MarketWatch • Apr. 22, 2026

Red marble, its white veins illuminated in the light of the sun, which slowly vanished as the opaque glass doors groaned shut.

From "Throne of Glass" by Sarah J. Maas

Vocabulary lists containing opaque

Ender's Game

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A Thousand Splendid Suns

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The Things They Carried

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!