Dyspeptic is an old-fashioned word not often used anymore. It describes someone who is irritable due to depression or indigestion.

Nowadays we separate people who are depressed from people who are cranky because of indigestion, but dyspeptic rolls both these conditions into one ball of fun. A common dyspeptic type would be an old man shouting "Get off my lawn!" to kids playing on the street.

Definitions of dyspeptic

adj suffering from dyspepsia

ill, sick
affected by an impairment of normal physical or mental function

adj irritable as if suffering from indigestion

atrabilious, bilious, liverish
having an irritable and unpleasant disposition

n a person suffering from indigestion

Type of:
diseased person, sick person, sufferer
a person suffering from an illness