- The definition of heartfelt is something that is earnest, sincere or deeply felt.
A sincere and deeply felt wish is an example of a heartfelt wish.
heartfelt definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
with or expressive of deep feeling; sincere
Origin: heart plush past participle of feel
heartfelt definition by American Heritage Dictionary
Deeply or sincerely felt; earnest.