Opaque or turbid in a physical sense; not allowing light or sight through (e.g., glass, liquid).
雨のせいで川の水が不透明になった。
Because of the rain, the river water became turbid.
窓ガラスが不透明で外がよく見えない。
The window glass is opaque, so you can't see outside clearly.
インクが混ざって溶液が不透明になった。
The solution became opaque after the ink mixed in.
Opacity; lack of transparency — situations or processes that are hard to understand or opaque (noun usage).
企業の不透明さが投資家の不安を招いた。
The company's lack of transparency caused concern among investors.
決定過程の不透明さを改善する必要がある。
There is a need to improve the opacity of the decision-making process.
Unclear, unpredictable, or uncertain — often used figuratively about outlooks or situations that are hard to predict.
景気の先行きが不透明で、将来の計画が立てにくい。
The economic outlook is uncertain, making it difficult to plan for the future.
政策の変更で市場が不透明になった。
Policy changes made the market unpredictable.
話し合いの結果はまだ不透明だ。
The outcome of the talks is still unclear.