opaque

English · Español · Français · Thesaurus

AI In plain words

Writing a short explanation…

Written by a house AI from the entry below, in your language. The entry itself is the source.

opaque

  • /əʊˈpeɪk/ UK
  • /oʊˈpeɪk/ Canada, US
  • /əʉˈpæɪk/ Australia
  • [ɐʉˈpæɪk] Australia
  • /ɐʉˈpæɪk/ New Zealand

Rhymes with -eɪk

Where it comes from

From Middle English opake, from Latin opacus (“shaded, shady, dark”) (of unknown origin), later reinforced from Middle French opaque. Doublet of ubac.

adjective more opaque · opaquer · most opaque · opaquest · opake

  1. Neither reflecting nor emitting light. We have agreed that heat is energy to begin with. Light is also a form of energy for when absorbed by any opaque substance it turns completely into heat.
  2. Allowing little light to pass through, not translucent or transparent.
  3. figuratively Unclear, unintelligible, hard to get or explain the meaning of.
  4. figuratively Obtuse, stupid.
  5. Describes a data 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.

Similar: adiaphanous, nontransparent, opacous, opacular, opaque, thick · Opposite: see-through, translucent, transparent, clear, obvious, oblique, bright, brilliant, turbid

noun opaques · opake

  1. obsolete, poetic An area of darkness; a place or region with no light. Through this opaque of Nature and of Soul, / This double night, transmit one pitying ray, / To lighten, and to cheer.
  2. Something which is opaque rather than translucent. They can be obtained in various thicknesses and in many colors, including beautiful imitations of pearl, mother-of-pearl, veins and mottles, stratifications, roll stratifications, imitation corals, and all colors of translucents, transparents and opaques, grained ivory, shell (plain and corrugated m

verb opaques · opaquing · opaqued · opake

  1. transitive To make, render (more) opaque.

    Similar: blur, cloud

Thesaurus

Closest in meaning: uncomprehensible, incomprehensible, unintelligible, mirky, turbid, murky, foggy, cloudy, muddy, frosted, whitish, solid, milklike, milky, milk, glaucous

Translations

Every language

adj neither reflecting nor emitting light

Deutschmatt, dunkel
Italianoopaco

adj hindering light to pass through

Españolopaco
한국어불투명(不透明)한 bultumyeonghan
日本語不透明な futōmei-na
中文不透明 bù tòumíng
Portuguêsopaco
Françaisopaque
Deutschundurchsichtig, undurchlässig, opak, blickdicht
Italianoopaco, opaca
Ελληνικάαδιαφανής adiafanís
Românănetransparent, opac
Русскийма́товый mátovyj, непрозра́чный neprozráčnyj
العربيةأَكْمَد ʔakmad

adj allowing little light to pass through

Deutschtrüb, trübe, milchig
Italianooffuscato

adj unclear, unintelligible, hard to get or explain the meaning of

Deutschunklar, schleierhaft, unverständlich, unverstanden
Italianoarcano, oscuro

adj obtuse, stupid

Deutschstumpf, begriffsstutzig, schwerfällig
Românăobtuz

noun area of darkness

DeutschUndurchsichtigkeit, Trübnis, Dunkelheit, verschleiern

noun something which is opaque

DeutschUndurchsichtiges, Blickdichtes

verb to render opaque

Españolopacar
Deutschtrüben, mattieren, verdunkeln, verschleiern

Talk about this word

Cite this
MLA

"opaque." Wiktionary, via Micwyn, micwyn.com/word/opaque. Accessed 6 Nov. 2026.

APA

opaque. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/opaque

Chicago

"opaque." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/opaque.

BibTeX
@misc{opaque_2026,
  title = {opaque},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/opaque},
  urldate = {2026-11-06}
}