carefree vs untroubled

carefree and untroubled both are adjectives.

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

carefree (adjective)	untroubled (adjective)
cheerfully irresponsible	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