rankling discontent, especially from envy or jealousy; grudge.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use heartburning in a sentence
So passed a year, full of anxiety and heartburning for them, full of the sweetest happiness for me.The Making of a Saint | William Somerset Maugham
Much heartburning and much needless trouble often come of "offences" which exist only in imagination.Expositor's Bible: The Gospel of Matthew | John Monro Gibson
In the following pages is the Courant confession of Burke, about which there was so much difficulty and heartburning.The History of Burke and Hare | George Mac Gregor
This is why a question apparently of pure science turns out practically so full of inward heartburning and mutual reviling.
It reduced his heartburning to melancholy, and he exclaimed, "Why the deuce did I come here!"The Mayor of Casterbridge | Thomas Hardy