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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.

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

From MarketWatch • Apr. 22, 2026

The committee urged more clarity in an admissions process they characterized as opaque, complicated and not clearly based on merit.

From The Wall Street Journal • Apr. 15, 2026

"The financial costs of industrial action in the NHS are fairly opaque," said Sally Gainsbury of the Nuffield Trust.

From BBC • Apr. 13, 2026

At least some vessels, they added, faced "a slow, opaque verification process and, in many cases, multimillion dollar toll demands".

From Barron's • Apr. 9, 2026

It is easy to tweak academics for their earnestly opaque language, as I am doing.

From "1491" by Charles C. Mann

Vocabulary lists containing opaque

Ender's Game

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A Thousand Splendid Suns

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

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!