nebulous

The word "nebulous" describes something that is hazy, vague, or lacking a definite shape or clear limits. It originates from the Latin word for "cloud," so imagine a distant, swirling mist that you cannot quite focus on or define with precision. It is typically used in formal or academic contexts to describe abstract ideas, plans, or memories that feel incomplete or difficult to grasp. You might describe a "nebulous concept" or a "nebulous goal" when someone has a general idea but hasn't yet worked out the specific details or structure.
In conversation
Planning a project
Do you have a solid plan for the marketing launch?
Do you have a solid plan for the marketing launch?
It's still a bit nebulous, honestly. We have the vision, but no timeline.
It's still a bit nebulous, honestly. We have the vision, but no timeline.
Used here to contrast a vague idea with a concrete plan.
Discussing a memory
Can you remember the name of that restaurant from our trip?
Can you remember the name of that restaurant from our trip?
I have a nebulous memory of a blue sign, but that's about it.
I have a nebulous memory of a blue sign, but that's about it.
Shows how the word describes a fading or unclear recollection.
Examples
The instructions were too nebulous to follow.
The instructions were too nebulous to follow.
She had a nebulous feeling that something was wrong.
She had a nebulous feeling that something was wrong.
The senator's nebulous response failed to address the core concerns of the voters.
The senator's nebulous response failed to address the core concerns of the voters.