ominous

/ˈɒmɪnəs/

adjective

Of or pertaining to an omen or to omens; being or exhibiting an omen; significant.
Specifically, giving indication of a coming ill; being an evil omen
"California poll support for Jerry Brown's tax increases has ominous implications for U.S. taxpayers too Los Angeles Times Headline April 25, 2011"
Similar: inauspicious, portentous, threatening

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