Lack of interest or concern, especially regarding matters of general importance or appeal; indifference.(noun)
Lack of emotion or feeling; impassiveness.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "apathy" in a sentence
"Here, the word apathy does not spring easily to mind."
"And our apathy is the reason why nothing has changed."
"Is our apathy is another example of American Exceptionalism or is apathy a global phenomenon?"