back of one's mind
The remote part of one's mind or memory, as in With the idea of quitting in the back of his mind, he turned down the next assignment. [c. 1900]
Quotes On The Importance Of Your MindRead more in this article about some frequently asked questions and fun facts related to our definitions.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.