Learn how to say Disconcertedly correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word disconcert:
disturb the composure of; unsettle:
the abrupt change of subject disconcerted her
(as adjective disconcerted)
Keith looked momentarily disconcerted
late 17th century (in the sense ‘upset the progress of’): from obsolete French desconcerter, from des- (expressing reversal) + concerter ‘bring together’