How is the term 'nebulous' best described?

The term 'nebulous' is best described as lacking definition or definite content, which captures its essence. In literary and everyday usage, 'nebulous' often refers to ideas, concepts, or entities that are vague or unclear, much like a nebula in astronomy is an indistinct and diffuse cloud in space. This term implies a sense of ambiguity or uncertainty, indicating that something does not have a sharp or well-defined outline.

Using 'nebulous' in a sentence could refer to a hazy idea that has not been fully formed or articulated, highlighting the presence of uncertainty or imprecision. Therefore, the description of being lacking in definition or definite content aligns perfectly with the meaning of 'nebulous'.