Nonchalantly(adverb)
In a casually calm and relaxed manner.
Hindi meaning:निर्लिप्त भाव से
Synonyms: Casually, Calmly, Indifferently
Antonyms: Attentively, Carefully
Example: She nonchalantly walked out of the police station.
Trick to remember: Usne chance kp nonchalantly liya 
