untroubled vs unworried

untroubled and unworried both are adjectives.

Word	Noun	Adjective	Verb	Adverb
untroubled	No	Yes	No	No
unworried	No	Yes	No	No

untroubled (adjective)	unworried (adjective)
not beset by troubles or disturbance or distress	free of trouble and worry and care
free from fear or doubt; easy in mind
free from turmoil or worries