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1. Cloudy, misty, or hazy.
2. Lacking definite form or limits; vague: nebulous assurances of future cooperation.
3. Of, relating to, or characteristic of a nebula.

[Middle English, from Latin nebulōsus, from nebula, cloud; see nebh- in Indo-European roots.]

neb′u·lous·ly adv.
neb′u·lous·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in classic literature ?
The obscurity was now so great that he could see absolutely nothing but a pale nebulousness at his feet, which represented the white muslin figure he had left upon the dead leaves.
There's a need for a framework that provides the guidance on where, how, and when to innovate, precluding the nebulousness of the innovation process.
Yet newness was so eclectic a proposition that we missed it nebulousness. If Dr.
Likewise, Tracy depicts the Indian milieu to be marked with the spatial nebulousness. The colonies misrepresented in the novels were maintained by the British Empire in different times and distant regions.
class="MsoNormalHis lyrics are nothing other than zingy nebulousness, perennial bragging and braggadocious passive-aggression.
from a certain nebulousness of thought." With characteristic impatience, he dismissed Bergerson's efforts to explain and justify the style of his palindromes as an attempt to "rationalize away" an admitted defect.
Therefore, sustainability must be recognized by its 'nebulousness' which is a feature commonly found in emerging paradigms (Robinson 2004).
As representatively exemplified in Fatoba and Soyinka's poetry, therefore, the nebulousness in Nigeria's nationhood is remarkably caused by the irreconcilable cultural differences among its federating units, which the military institution has always manipulated to stage incessant military coups.
Since the term 'Golden State' also refers to other cities in the state of California, the nebulousness of the name have confused many beyond the Bay Area.
Indeed, given that big data has acquired such importance in spite of this nebulousness of definition, the group decided a single, concrete definition wasn't really a desirable outcome.
One of the results of this nebulousness, particularly when it comes to the ambiguous conceptualization of core terms, is that there is surprisingly relatively little empirical research in the area.