Definition

1. Adjective:
   • Gloomy; dejected; downcast: Describes a state of low spirits, sadness, or listlessness, often manifesting in withdrawn or inactive behavior.
   • Afflicted by Newcastle disease (specifically for poultry): Used in veterinary contexts to describe chickens that are sick, drooping, and showing symptoms of this specific avian disease.

Usage Examples

• Adjective (describing mood):
  • Ngồi rù ở nhà. (To sit gloomily at home.)
  • Nó ngồi rù rù một xó. (He sat dejectedly in a corner.)
• Adjective (describing poultry):
  • Con gà này trông rù quá. (This chicken looks very sick/droopy [with Newcastle disease].)

Advanced Usage

• The reduplicated form "rù rù" intensifies the meaning, indicating a state of being deeply dejected, profoundly downcast, or very listless.
  • Cả ngày anh ấy chỉ ngồi rù rù. (All day he just sat there, utterly dejected.)

Variants and Related Words

• Ủ rù (adj): A synonymous compound meaning deeply sad, despondent, or moping. Often used interchangeably with .
  • Gà ốm, đứng ủ rù. (The sick chicken stands despondently.)

Synonyms

• Dejected: Sad and depressed; dispirited.
• Despondent: In low spirits from loss of hope or courage.
• Languid: Displaying a disinclination for physical exertion; slow and relaxed.
• Drooping (for poultry): Hanging down limply, often due to sickness.

Related Idioms

• While not a standalone idiom, the state of being is often associated with the idiom "ủ ê buồn bã" (to be sorrowful and melancholy), which captures the same emotional tone.

1. Gloomy
   • Ngồi rù ở nhà
     To stay gloomily at home
   • Ngồi rù rù một xó
     To sit gloomily in a corner
2. Affected by Newcastle's disease (nói về gà)