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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.

It’s hard to draw firm conclusions about the opaque inner workings of Iran’s leadership.

From The Wall Street Journal • Apr. 25, 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

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

From MarketWatch • Apr. 22, 2026

This stops hauliers imposing opaque price increases with a vague link to fuel bills.

From BBC • Apr. 22, 2026

The panels now change to opaque, leaving only two horizontal stripes of glass transparent to the outside.

From "Warcross" by Marie Lu

Vocabulary lists containing opaque

Ender's Game

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

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!