'nonchalant' - Complete English Word Reference Definitions of 'nonchalant' If you describe someone as nonchalant, you mean that they appear not to worry or care about things and that they seem very calm. [...] Definition of nonchalant adjective from the Oxford Advanced Learner's Dictionary. behaving in a calm and relaxed way; giving the impression that you are not feeling worried synonym casual (2) ‘It'll be fine,’ she replied, with a nonchalant shrug. She was almost nonchalant about the dangers involved. ‘They're not back yet then?’. What does it mean when someone is nonchalant? Someone who is nonchalant is relaxed and calm , either because they do not care about something or because they are not worried about something. NONCHALANT meaning: relaxed and calm in a way that shows that you do not care or are not worried about anything
