dyspeptic (adj) - of, having, or pertaining to indigestion; irritable, moody, or gloomy [dis-pep-tik]
BREAKDOWN: DYS- (bad) + PEPT- (digest) + -IC (pertaining to)
dyspepsia describes feelings of stomach pain, over-fullness, and bloating during and after eating; indigestion
eupepsia means good digestion
“There was an old man of Orleans,
Who was given to eating of beans;
Till once out of sport,
he swallowed a quart,
That dyspeptic old man of Orleans.”
— Edward Lear