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English definition of “ominous”

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ominous

adjective uk   /ˈɒm.ɪ.nəs/ us    /ˈɑː.mə-/
suggesting that something unpleasant is likely to happen: There was an ominous silence when I asked whether my contract was going to be renewed. The engine had been making an ominous sound all the way from London. ominous dark clouds
ominously
adverb uk   /-li/ us  
I went into the kitchen and found him lying ominously still on the floor.
(Definition of ominous from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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