Definition

1. Adjective:
   • Perfidious, treacherous: Describes a person, action, or plan characterized by deceit, betrayal, and hidden danger. It implies a cunning and wicked nature that deliberately harms others through dishonesty.
   • Dishonest and wicked: Combines the ideas of deceit (gian) and danger/evil (hiểm), indicating a morally corrupt and unsafe character or situation.

Usage Examples

• Adjective:
  • Kẻ địch rất gian hiểm. (The enemy is very treacherous.)
  • Hắn ta lập ra một âm mưu gian hiểm. (He devised a perfidious plot.)
  • Con đường lên núi vừa dốc vừa gian hiểm. (The mountain path is both steep and perilous [figuratively implying hidden dangers].)

Advanced Usage

• Used in formal or literary contexts: This term is often used in written Vietnamese, historical narratives, or formal speech to describe profound malice and deceit, rather than everyday minor dishonesty.
• Describing abstract concepts: Can be used to describe not only people but also plans, traps, or situations that are deceptively dangerous.
  • Những thủ đoạn chính trị gian hiểm. (Perfidious political tactics.)

Variants and Related Words

• Gian (adj): Deceitful, dishonest. A core component meaning "cunning" or "fraudulent."
• Hiểm (adj): Dangerous, perilous; can also mean "malicious" or "wicked." A core component meaning "danger" or "malice."
• Gian trá (adj): Deceitful, fraudulent. Focuses more on the deceitful aspect.
• Hiểm độc (adj): Malicious, venomous. Focuses more on the wicked or poisonous aspect.
• Nham hiểm (adj): Sinister, vicious. A very close synonym, often used interchangeably with .

Synonyms

• Perfidious: Deceitful and untrustworthy (formal).
• Treacherous: Guilty of or involving betrayal or deception.
• Deceitful: Guilty of or involving deceit; intended to mislead.
• Insidious: Proceeding in a gradual, subtle way, but with harmful effects.

Related Idioms

• Gian hiểm độc ác: A reinforcing phrase meaning "treacherous and cruel."
  • Bọn cướp gian hiểm độc ác. (The robbers are treacherous and cruel.)
• Lòng dạ gian hiểm: A "treacherous heart" or "devious mind."
  • Đừng tin hắn, hắn có lòng dạ gian hiểm. (Don't trust him; he has a treacherous heart.)

1. Perfidious, dishonest and wicked