nonchalantly
1 of 1adverb/ˌnɑnʃəˈlæntli/
1
in a relaxed and unconcerned manner, showing little or no anxiety, enthusiasm, or interest
- She nonchalantly tossed her keys onto the table.
- He nonchalantly shrugged when asked about the project.
- They walked nonchalantly into the meeting twenty minutes late.
- "It's no big deal," he said nonchalantly.
- She nonchalantly waved off the warning, unconcerned by the risks.