This is the 148th most frequent Turkish word.
düşük
Low.
Here, "düşük" is used figuratively to describe the emotional or mental state of being down or low.
Onun moral durumu son zamanlarda çok düşük.
His mood has been very low lately.
In this sentence, "düşük" relates to a specific measurable characteristic being low in value or amount.
Ampulün watt değeri düşük olduğu için ışık yeterince parlak değil.
The light bulb's wattage is low, so the light is not bright enough.
When used as an adjective, "düşük" describes something that is lower or reduced in level or amount.