nonchalantly

from WordNet (r) 3.0 (2006)

nonchalantly
    adv 1: 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" [syn:
           {coolly}, {nervelessly}, {nonchalantly}]
    2: in an unconcerned manner; "glanced casually at the headlines"
       [syn: {casually}, {nonchalantly}]

from The Collaborative International Dictionary of English v.0.48

Nonchalantly \Non"cha*lant`ly\, adv.
   In a nonchalant, indifferent, or careless manner; coolly.
   [1913 Webster]