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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.
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.
1. lacking definite form, shape, or content; vague or amorphous: nebulous reasons.
2. (Astronomy) of, characteristic of, or resembling a nebula
3. rare misty or hazy
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
neb•u•lous(ˈnɛb yə ləs)
1. hazy, vague, indistinct, or confused.
2. cloudy or cloudlike.
3. of or resembling a nebula or nebulae; nebular.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Adj.||1.||nebulous - lacking definite form or limits; "gropes among cloudy issues toward a feeble conclusion"- H.T.Moore; "nebulous distinction between pride and conceit"|
indistinct - not clearly defined or easy to perceive or understand; "indistinct shapes in the gloom"; "an indistinct memory"; "only indistinct notions of what to do"
|2.||nebulous - of or relating to or resembling a nebula; "the nebular hypothesis of the origin of the solar system"|
|3.||nebulous - lacking definition or definite content; "nebulous reasons"; "unfixed as were her general notions of what men ought to be"- Jane Austen|
indefinite - vague or not clearly defined or stated; "must you be so indefinite?"; "amorphous blots of color having vague and indefinite edges"; "he would not answer so indefinite a proposal"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
1. vague, confused, uncertain, obscure, unclear, ambiguous, indefinite, hazy, indeterminate, imprecise, indistinct the nebulous concept of `spirit'
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
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.
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
nebulous[ˈnɛbjʊləs] adj → nébuleux/euse
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
nebulous[ˈnɛbjʊləs] adj → nebuloso/a (fig) → nebuloso/a, vago/a
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
English-Spanish Medical Dictionary © Farlex 2012