Question

If you are complacent, you are pleased with yourself (com-, from con-, with, together); you may, in fact, such is one common connotation of the word, be smug, too pleased with your position or narrow accomplishments, too easily self-satisfied, and the hour of reckoning may be closer than you realize. (Humans, as you know, are delighted to be critical of the contentment of others.)
The noun is complacence or complacency.

Accepted Answer

if you please!

知识	If you are complacent, you are pleased with yourself (com-, from con-, with, together); you may, in fact, such is one common connotation of the word, be smug, too pleased with your position or narrow accomplishments, too easily self-satisfied, and the hour of reckoning may be closer than you realize. (Humans, as you know, are delighted to be critical of the contentment of others.) The noun is complacence or complacency.
《》	if you please!
出处	Word Power Made Easy SESSION 23

Pleased Complacent Con With Fact Common Connotation Word