turbid

Imagine stirring up the bottom of a creek. That muddy, unclear water is turbid. The word is used mainly for liquids, especially water, when tiny particles are mixed in and make it hard to see through. A river can turn turbid after heavy rain, and a glass of water can look turbid if dirt or other matter has been stirred into it.

The word comes from the Latin turbidus, meaning "disturbed" or "agitated." That origin fits the image well: something clear gets stirred up and loses its clearness.

To describe something as turbid is to say that it is clouded with particles, making it hard to see through clearly. The word is most often used for liquids, especially water. It suggests that the lack of clearness comes from stirred-up sediment or other suspended matter, not just from color alone. A stream may become turbid after rain washes soil into it, and a pond may look turbid when mud is mixed up from the bottom.

In scientific, environmental, and everyday writing, turbid often appears in discussions of water quality, rivers, lakes, and laboratory samples. It is close in meaning to murky or cloudy, but it usually sounds a bit more precise or technical. Someone measuring water conditions might report high turbidity; in ordinary speech, a person might simply say the water looks turbid after a storm.

The word can sometimes be extended in literary or formal writing to describe something unclear in a broader sense, but that is less common than the physical meaning. Its main job is to paint the picture of water or another liquid that has lost its clearness because something has been mixed into it.

So when you see water that looks muddy, cloudy, and full of stirred-up matter, turbid is a strong and accurate word for it. It carries the image of motion, disturbance, and lost clarity.