Synonyms of nonchalantly

Adverb

1. coolly, nervelessly, nonchalantly

usage: in a composed and unconcerned manner; "without more ado Barker borrowed a knife from his brigade Major and honed it on a carborundum stone as coolly as a butcher"

2. casually, nonchalantly

usage: in an unconcerned manner; "glanced casually at the headlines"