ominous vs baleful

ominous and baleful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ominous	No	Yes	No	No
baleful	No	Yes	No	No

As adjectives, ominous and baleful are synonyms defined as:

ominous and baleful: threatening or foreshadowing evil or tragic developments

Other synonyms of ominous include forbidding, menacing, minacious, minatory, sinister, threatening.

ominous (adjective)	baleful (adjective)
threatening or foreshadowing evil or tragic developments	threatening or foreshadowing evil or tragic developments
presaging ill fortune	deadly or sinister