Longman Dictionary of Contemporary English homepage

nebulous

adjective
     
neb‧u‧lous formal
1 an idea that is nebulous is not at all clear or exact [= vague]:
'Normality' is a rather nebulous concept.
2 a shape that is nebulous is unclear and has no definite edges:
a nebulous ghostly figure

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary