baleful vs threatening

baleful and threatening both are adjectives.

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

As adjectives, baleful and threatening are synonyms defined as:

baleful and threatening: threatening or foreshadowing evil or tragic developments

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

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