adjective
dyspeptic
dis-PEP-tik/dɪsˈpeptɪk/
Affected by indigestion.
After a heavy meal, he feels dyspeptic and skips dessert.

Etymology
‘Difficult to digest’ first connected this word with indigestion. It later described the gloomy, pessimistic disposition associated with an indigestion sufferer, yielding the figurative sense ‘irritable or dissatisfied.’
More examples
- Rich sauces often leave me feeling dyspeptic.
- The dyspeptic patient complains of discomfort after meals.
- She feels less dyspeptic when she eats smaller portions.
Forms
dyspeptic
dyspepsia noun — Indigestion, especially discomfort after eating.