adjective

nebulous

NEB-yuh-lus/ˈnebjələs/

Cloudlike or indistinct in form.

The nebulous chair sketch leaves its basic shape unclear.

A nebulous furniture-design proposal: an indistinct chair sketch leaves its basic form unresolved, while two collaborators consider markedly different chair models that could fit it.
Etymology

Originally describing something cloudy or misty, nebulous came to describe ideas whose outlines are similarly hard to distinguish: vague, unclear, or poorly defined.

In context

Howard Ibach1:55
it is nebulous and I think that that's the first like bullet point I would put out there I mean we have to be very um precise in our language when we're talking about things like strategy
E90: This nebulous thing called "strategy."

More examples

  • The painting shows nebulous patches of blue and gray.
  • Through the frosted glass, people look like nebulous shadows.
  • Our vacation plans remain nebulous until we choose a destination.

Forms

nebulous

Similar words

hazy
Suggests blurred visibility, often because of mist or smoke.
indistinct
Describes unclear outlines without necessarily suggesting a cloudlike appearance.
vague
Usually describes unclear ideas rather than cloudlike physical shapes.