Opaque definition

ō-pāk
Not allowing electricity, heat, etc. to pass through.
adjective
39
22
Hard to understand; obscure.
adjective
30
25
The definition of opaque is not capable of having light pass through or hard to understand.

An example of opaque is the quality of a black sheet of paper.

An example of opaque is the study of astrophysics.

adjective
5
1
Something that is opaque, especially an opaque pigment used to darken parts of a photographic print or negative.
noun
26
24
Not reflecting light; having no luster.

An opaque finish.

adjective
2
0
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Mentally obtuse; dense.
adjective
2
0
Neither reflecting nor emitting light.
adjective
2
0
(figuratively) Obtuse, stupid.
adjective
2
0
Not reflecting light; not shining or lustrous; dull or dark.
adjective
25
24
Impenetrable by a form of radiant energy other than visible light.

A chemical solution opaque to x-rays.

adjective
1
0
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Impenetrable by light; neither transparent nor translucent.
adjective
1
0
So obscure as to be unintelligible.
adjective
1
0
(figuratively) Unclear, unintelligible, hard to get or explain the meaning of.
adjective
1
0
(computing) Describes a type for which higher-level callers have no knowledge of data values or their representations; all operations are carried out by the type's defined abstract operators.
adjective
1
0
To make, render (more) opaque.
verb
1
0
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Allowing little light to pass through, not translucent or transparent.
adjective
1
1
Something which is opaque rather than translucent.
noun
1
1
Slow in understanding; obtuse.
adjective
12
18
Not letting light pass through; not transparent or translucent.
adjective
1
7
(photog.) To apply opaque to (a negative)
verb
1
7
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Resistant to the transmission of certain kinds of radiation, usually light. Metals and many minerals are opaque to light, while being transparent to radio waves and neutrinos.
1
9
To make opaque.
verb
5
16
(photog.) An opaque liquid used in blocking out parts of a negative.
noun
4
16
Anything opaque.
noun
4
17

Alternative Forms

Alternative Form of opaque - opake

Other Word Forms

Adjective

Base Form:
opaque
Comparative:
opaquer
Superlative:
opaquest

Origin of opaque

  • Middle English opake shady and French opaque opaque (from Old French shady) both from Latin opācus

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle English opake, from Latin opacus (“shaded, shady, dark") (of unknown origin), later reinforced from Middle French opaque.

    From Wiktionary