The synonym for the word "nonchalant" is unconcerned.
Read the passage. Then, select the synonym of the word in bold.
The first suspect was nonchalant as she sauntered into the interrogation room for questioning where were you on the night of June 13 2013 detective Carson asked her unconcerned she responded I was the keynote speaker at an event at night and several 100 people were in attendance can corroborate my alibi
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