When used metaphorically, 'dyspeptic' describes someone's sour mood and not actual indigestion.

Not Always Literal

'Dyspeptic' can imply that someone's grumpiness is a temporary reaction, possibly from discomfort.

Emotional Response

In medical contexts, it refers specifically to gastrointestinal distress, but laypersons often use it loosely.

For this definition, focus on the emotional aspect—irritability or pessimism—rather than physical symptoms.

'Dyspeptic' can imply a lasting state of irritation or negativity, not just a fleeting one.

The term suggests there's a reason for the bad mood, like losing a game, and not just an unpleasant personality.