opacity

/əʊˈpæsəti/ (bre, ipa) · /əʊˈpæsəti/ (ame, ipa) · /ō-ˈpa-sə-tē/ (ame, mw)

opacity — noun

1. how much a material, liquid, or image blocks light, making what is behind it har

1.名詞C1
釋義

how much a material, liquid, or image blocks light, making what is behind it hard or impossible to see clearly

例句

Nila lowered the opacity of the blue layer until the map showed through.

opacity of [digital layer]

The paint's opacity covered the old wall colour in one coat.

high opacity for strong coverage

同義詞
  • opaqueness

    close in meaning but less common in technical or design writing

  • density

    focuses on how thick something is, not directly on light-blocking

反義詞
  • transparency

    describes light passing through so objects behind stay visible

  • translucency

    allows some light through, but the view behind is blurred

文法句型

opacity of [material/image]

high / low opacity

用法筆記

Often used for glass, paint, fabric, liquids, and design software. In digital design, lower opacity makes an image look more transparent, while higher opacity makes it look more solid.

常見錯誤

❌The curtain has high opacity, so people outside can see through it.
✅The curtain has low opacity, so people outside can see through it.
💡higher opacity means less can be seen through the material.

2. the quality of language, decisions, or systems being so unclear that people cann

2.名詞C2
釋義

the quality of language, decisions, or systems being so unclear that people cannot easily work out what they mean or how they operate

例句

Voters criticized the budget report's opacity after key numbers were left unexplained.

opacity of [public document]

The contract's opacity forced Roya to ask a lawyer for help.

pattern: opacity forced + person + to act

同義詞
  • obscurity

    more literary and often used for ideas or writing

  • murkiness

    suggests something is unclear in a suspicious or messy way

  • ambiguity

    focuses on more than one possible meaning, not general lack of clarity

反義詞
  • clarity

    ideas or information are easy to understand

  • transparency

    stresses openness and easy access to information

文法句型

opacity of [language/system]

add opacity to [process/statement]

用法筆記

Common with reports, contracts, procedures, algorithms, and official statements. It usually suggests that the problem comes from hidden detail or hard-to-follow wording, not simple brevity.

常見錯誤

❌The minister's opacity helped everyone understand the plan faster.
✅The minister's clarity helped everyone understand the plan faster.
💡opacity means the message stays hard to understand.