unconcerned vs untroubled

unconcerned and untroubled both are adjectives.

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

unconcerned (adjective)	untroubled (adjective)
lacking in interest or care or feeling	not beset by troubles or disturbance or distress
not occupied or engaged with	free from fear or doubt; easy in mind
easy in mind; not worried	free from turmoil or worries