selfishness
n. uncountable B2 Upper Intermediate US //ˈsɛɫfɪʃnəs// UK //sˈɛlfɪʃnəs// self·ish·ness
n. the habit of thinking only about yourself and what you want. You show this when you do not care about the needs or feelings of other people.
n. the quality or state of being concerned excessively or exclusively with oneself. Refers to a lack of consideration for others regardless of their needs or interests.
His selfishness made it hard for him to keep friends.
The team's failure was largely due to the selfishness of a few players who refused to pass the ball.
Philosophers often debate whether true altruism exists or if every human action is ultimately rooted in some form of psychological selfishness.
From selfish + -ness.
Usage
Typically functions as an abstract noun and does not take a plural form.