define insouciantly
insouciant The definition of insouciant is a person who is calm, without cares or concerns. An example of an insouciant person is someone sitting by the pool and sipping a cocktail while on vacation. casually or smugly indifferent; nonchalant. Origin of insouciant. French : in-, not (from Old French; see inâ1) + souciant, present participle of soucier, to trouble (from Old French, from Vulgar Latin *sollic&imacron;tare, alteration of Latin sollicitare, to vex; see solicit).