Based on their appearance:
* Opaque: This is the most general term, meaning that light cannot pass through the liquid.
* Cloudy: This describes a liquid that is slightly opaque, with a hazy or milky appearance.
* Turbid: This describes a liquid that is cloudy due to suspended particles.
Based on their properties:
* Non-translucent: This means the liquid does not allow light to pass through it, even diffusely.
* Absorbent: This means the liquid absorbs light, preventing it from passing through.
* Scattering: This describes liquids that scatter light, causing it to change direction and making the liquid appear opaque.
Other descriptive terms:
* Dense: This might be used to describe liquids that are dark in color and appear thick and heavy.
* Colored: This describes liquids that have a specific color that prevents light from passing through.
Ultimately, the best term to use depends on the specific context and the desired level of detail.