the GNU version of the Collaborative International Dictionary of English
adj. Cloudy; hazy; misty.
adj. Of, pertaining to, or having the appearance of, a nebula; nebular; cloudlike.
The Century Dictionary and Cyclopedia
Cloudy; hazy: used literally or figuratively.
In astronomy, pertaining to a nebula; having the appearance of a nebula; nebular.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. lacking definite form or limits
adj. lacking definition or definite content
adj. of or relating to or resembling a nebula
Word Usage
"He wants to recycle setting for future stories, so all of the most-entertaining characters have to survive through the end of the story (or at least die in nebulous ways so that he can bring them back, if need be)."