- ominous⇄adv. ominously.
- ominous⇄noun ominousness.
- ominous⇄ominous, adjective.
1. of bad omen; unfavorable; threatening.
Ex. a dull, ominous rumble (Bret Harte). Those clouds look ominous for our picnic.
(SYN) inauspicious, foreboding.
2. of or like an omen; prophetic; portentous.