dyspeptic

nouns

a person suffering from indigestion
dyspeptic
is a type of (narrower)
a person suffering from an illness
diseased person, sick person, sufferer

adjectives

suffering from dyspepsia
dyspeptic
is derived from
dyspepsia
is similar to
affected by an impairment of normal physical or mental function
"ill from the monotony of his suffering"
ill, sick
irritable as if suffering from indigestion
atrabilious, bilious, dyspeptic, liverish