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adj C2 Proficient Uncommon

opaque

oh-PAYK

Opaque (adj) means not allowing light to pass through; not transparent or translucent. Example: “The bathroom window has opaque glass for privacy.”

adj
1
Not allowing light to pass through; not transparent or translucent.
"The bathroom window has opaque glass for privacy."
2
Difficult to understand or see through, especially referring to explanations, processes, or motives.
"The company's pricing policy is frustratingly opaque."

How to use opaque

Learner’s notes

In plain EnglishBlocking light completely, or (figuratively) hard to understand or see clearly into.

Common mistake

Don't confuse with "translucent" (lets some light through, but blurs what's behind it) — opaque lets no light through at all.

Easily confused with
Common pairings
opaque glass opaque process opaque language

Word forms

more opaque comparative, opaquer comparative, opaqued past tense, opaques plural, opaques singular, most opaque superlative, opaquest superlative

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Test yourself on “opaque” A quick quiz — meaning, synonyms & usage

Fill the gap

Can you complete this real example?

The bathroom window has _____ glass for privacy.

Etymology

From Latin opacus ("shaded, dark"), via Middle English opake, later reshaped by French opaque.

Origin: Latin

Related words

Rhymes for opaque

See all rhymes for opaque →

Frequently asked questions

What does “opaque” mean?

The word “opaque” means not allowing light to pass through; not transparent or translucent. In plain terms, blocking light completely, or (figuratively) hard to understand or see clearly into.

How do you pronounce “opaque”?

“Opaque” is pronounced oh-PAYK (/oʊˈpeɪk/ in IPA).

How do you use “opaque” in a sentence?

Here is “opaque” used in a sentence: “The bathroom window has opaque glass for privacy.”

What is another word for “opaque”?

Words with a similar meaning to “opaque” include adiaphanous, nontransparent, opacous, opacular and thick.

What is the opposite of “opaque”?

The opposite of “opaque” — its antonyms — are see-through, translucent, transparent, clear and obvious.

What part of speech is “opaque”?

“Opaque” is an adjective.

Where does the word “opaque” come from?

The word “opaque” comes from Latin. From Latin opacus ("shaded, dark"), via Middle English opake, later reshaped by French opaque.

Is “opaque” a common word?

“Opaque” is an uncommon word in modern English, usually learned at around the C2 level.

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Definitions: FreeDict original editorial