Something subtle, especially a nicety of thought or a fine distinction.(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 "subtlety" in a sentence
"Yes, "she pursued with greater energy," what you call subtlety of argument is but force of conviction."
"I initially found it strange as well, but I wonder if the lack of subtlety is deliberate."
"Your subtlety is lost even upon the bishops and priests who should know better, as I have seen them condemn all gays and gay rights initiatives as a moral evil that destroys the family."