sinister vs baleful

sinister and baleful both are adjectives.

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

As adjectives, sinister and baleful are synonyms defined as:

sinister and baleful: threatening or foreshadowing evil or tragic developments

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

sinister (adjective)	baleful (adjective)
threatening or foreshadowing evil or tragic developments	threatening or foreshadowing evil or tragic developments
stemming from evil characteristics or forces; wicked or dishonorable	deadly or sinister
on or starting from the wearer's left