Carefree

['keəfriː] or ['kɛrfri]

(adj.) cheerfully irresponsible; 'carefree with his money'; 'freewheeling urban youths'; 'had a harum-scarum youth' .

(adj.) free of trouble and worry and care; 'the carefree joys of childhood'; 'carefree millionaires, untroubled financially' .

Checker: Marty--From WordNet