ominous 3 antonyms and opposites of ominous. Adj — Suggesting that something bad is about to happen; threatening or foreboding. Synonyms for ominous augurous baleful bodeful boding dire disastrous divine fatal foreboding ill-fated ill-boding ill-omened ill-starred inauspicate inauspicious nefastous brooding omenic portentous presageful presagious prodigious sinister star-crossed sullen Antonyms for ominous auspicious omenless unomened ← Back to the full definition of ominous
