The word Hartburned is misspelled against Heartburned, an adjective meaning "Having heartburn."
-->
Heartburned has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets h & rtburned is misspelled as 'A'
Wrong Spelling:  h-a-rtburned 
Correct Spelling:  h-ea-rtburned 
Check more misspelled words of Heartburned to spell it correct.