Synonyms of heartburn
indigestionIf you have indigestion, you have pains in your stomach and chest that are caused by difficulties in digesting food.
• The symptoms are loss of appetite, indigestion and nausea.
Thesaurus for heartburn from the Collins English Thesaurus
a burning sensation beneath the breastbone caused by irritation of the oesophagus, as from regurgitation of the contents of the stomach