Thesaurus

ominous

adjective

Synonyms and Antonyms of ominous

Synonym Discussion of ominous

ominous, portentous, fateful mean having a menacing or threatening aspect. ominous implies having a menacing, alarming character foreshadowing evil or disaster.
    • ominous rumblings from the volcano
portentous suggests being frighteningly big or impressive but now seldom definitely connotes forewarning of calamity.
    • an eerie and portentous stillness
fateful suggests being of momentous or decisive importance.
    • the fateful conference that led to war

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