Answer:To Help the English king by letting him know his ambassador may be disobedience to orders. The serene certainty of the superiority of its civilization and the greatness of its power, which is evident from this letter, did not really have a sufficiently strong foundation to consider King George III as one of his subordinates.
The word thoughtless provides a clue to the meaning of insensitive because the defenition of insensitive means showing no feeling or concern about anyones feelings