insouciant Synonyms

nonchalant casual worry-free unmoved uninterested unconcerned serene relaxed pococurante phlegmatic perfunctory offhand lukewarm low-pressure unruffled laid-back lighthearted unenthusiastic unemotional undesirous uncaring untroubled unmotivated unworried slaphappy happy-go-lucky carefree halfhearted easygoing listless laodicean cool composed cold cavalier careless calm buoyant breezy blithe blase apathetic aloof detached disimpassioned disinterested lackadaisical jaunty indifferent incurious