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nebulous

nebulous

10 7.9
Unclear and hard to picture or describe
  • adjective
  • /ˈnɛbjələs/
translation icon : vago
  • The project's goals were so nebulous that no one knew what was expected of them.
  • nebulous concept
  • nebulous term
  • nebulous idea

When I say, hey, Andrew, here's this nebulous idea that I have.

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Examples

  • Advocates of NATO enlargement speak in nebulous terms about promoting cooperation and stability throughout Europe.

    Academic text (1998)
  • At present, his concept of money was still too nebulous for that to be a matter of anxiety.

    Fiction book (1990)
  • First of all, gain of function is a very nebulous term.

  • In the Black community, class is a much more nebulous term than in the White community.

    Academic text (1994)
  • The initial state of the book is but a nebulous, extremely loose bunch of ideas.

  • In fact, the concept is so nebulous that it fails the "know it when we see it" test.

    Academic text (2012)
  • Its definition and the details of its execution are nebulous to many and are rarely, if ever, explained.

    Academic text (2015)
  • The definition of quality healthcare, its accurate measurement, and its effective management are nebulous and constantly evolving.

    Academic text (2013)
  • Some have dismissed it as nebulous, unmeasurable, and of little use as an analytical tool.

    Academic text (1993)
  • Meteorologists speak of a nebulous veil of air pollution encircling the entire planet.

    Academic text (1993)

Synonyms

vague
vsnebulous
230 4.6

Not clear or detailed so you are unsure what is meant

is about lacking any definite shape, form, or content
unclear
vsnebulous
207 3.9

Not easy to understand or know for sure

is less about understanding and more about having no definite form
cloudy
vsnebulous
12 3.5

A thought that is not clear or detailed

is broader, stressing absence of definite shape or content generally
indeterminate
vsnebulous
11 7.0

Not clearly known or decided

points to a lack of definite shape or content rather than uncertainty
undefined
vsnebulous
8 5.3

Not clearly limited or described

emphasizes vague overall form rather than only missing limits
ill-defined
vsnebulous
5 6.5

Not clearly or exactly stated

focuses more on absence of definite shape or form
indecisive
vsnebulous
1 5.0

Not clearly defined so limits are unclear

highlights absence of definite shape or content rather than choice difficulty
unfixed
vsnebulous
1 6.5

Not decided or clear about a plan like a date

is similar but emphasizes vagueness of shape and overall impression
undelineated
vsnebulous
9.5

Not clearly separated from other things and lacking clear edges

stresses an indistinct overall shape or form instead of representation issues
nonlucid
vsnebulous
8.5

Difficult to understand

relates more to being without definite shape or content than obscurity

Antonyms

155 1.6

Clearly stated or decided and not vague

8 1.0

In a way that is easy to hear or understand

How Vague

nebulous
10 7.9
vague
230 4.6
ill-defined
5 6.5
unclear
207 3.9
indistinct
328 5.3

Surface Forms

nebulous positive
nebulouser comparative
nebulousest superlative

Morphology

nebulous = nebula (semi-transparent) = nebula + ous

Formed from 'nebula' + '-ous' but the sense 'vague' is a figurative extension from 'cloudy', so learners may not recover the abstract meaning from the base alone.

Etymology

The word nebulous comes from the old Latin word nebula, meaning 'mist' or 'cloud', and a helpful way to remember it is to think of an idea covered by fog. So when something is nebulous it is vague or unclear, like a thought you cannot see clearly.