unsettled vs doubtful

unsettled and doubtful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unsettled	No	Yes	No	No
doubtful	No	Yes	No	No

unsettled (adjective)	doubtful (adjective)
not settled or established	open to doubt or suspicion
still in doubt	fraught with uncertainty or doubt
not yet settled	unsettled in mind or opinion
subject to change