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Definition of nebulous adjective from the Oxford Advanced Learner's Dictionary

nebulous

adjective
 
/ˈnebjələs/
 
/ˈnebjələs/
(formal)
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  1. not clear synonym vague
    • a nebulous concept
    Oxford Collocations DictionaryNebulous is used with these nouns:
    • concept
    See full entry
    Word Originlate Middle English (in the sense ‘cloudy’): from French nébuleux or Latin nebulosus, from nebula ‘mist’. The current sense dates from the early 19th cent.
See nebulous in the Oxford Advanced American Dictionary
Check pronunciation: nebulous

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