dyspeptic /dɪsˈpɛp.tɪk/adjective 2noun 1forms 3 adjective2 •Of, relating to, or having dyspepsia or indigestion.If she was hot or cold or dyspeptic or at a loss for a word, she went to the book, and it told her which button to press. — 1909 •(figurative) Irritable or morose.Sir Maurice made a rough, dyspeptic sound, as if chewing a mint. — 2004 noun1 •A dyspeptic person.Medical management of peptic ulcers is employed along with psychotherapy to greater advantage than the multitude of operations employed twenty years ago for the unfortunate dyspeptic. — 1951 formsdyspeptics · more dyspeptic · most dyspeptic