unflustered

listen to the pronunciation of unflustered
Английский Язык - Английский Язык
Not flustered; calm
free from emotional agitation or nervous tension; "the waiters were unflurried and good natured"; "with contented mind and unruffled spirit"- Anthony Trollope
{s} without any emotional agitation; unperturbed, not perturbed, not worried, unruffled