threatening vs baleful

threatening and baleful both are adjectives.

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

As adjectives, threatening and baleful are synonyms defined as:

threatening and baleful: threatening or foreshadowing evil or tragic developments

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

threatening (adjective)	baleful (adjective)
threatening or foreshadowing evil or tragic developments	threatening or foreshadowing evil or tragic developments
darkened by clouds	deadly or sinister