“What is a nebulous mass, just out of idle curiosity?" "A possible growth in the body." "And it's called nebulous because you can't get a clear picture of it." "We get very clear pictures. The imaging block takes the clearest pictures humanly possible. It's called a nebulous mass because it has no definite shape, form or limits." "What can it do in terms of worst-case scenario contingencies?" "Cause a person to die." "Speak English, for God's sake. I despise this modern jargon.”
“Nebulosity” refers to the insubstantial, amorphous, non-separable, transient, ambiguous nature of meaningness.
However, often the difficulty is not that we don’t know what the true meaning is, but that it is inherently ambiguous. It is a feature of reality, not of knowledge.