Definition

1. Adjective:
   • Reasonable; rational; logical: Describes an argument, explanation, or person that is based on sound logic, clear principles, and correct reasoning.
   • Just; fair: Describes a decision, judgment, or action that is in accordance with what is morally right and equitable.

Usage Examples

• Adjective:
  • Lập luận của anh ấy rất đạt lí. (His argument is very logical.)
  • Một phán quyết đạt lí cần dựa trên bằng chứng. (A fair verdict must be based on evidence.)
  • Cô ấy là người đạt lí, luôn suy nghĩ thấu đáo. (She is a reasonable person who always thinks things through.)

Advanced Usage

• Often used in formal or literary contexts to describe high-quality reasoning or profound understanding of principles.
• Commonly paired with "đạt tình" (understanding of human sentiments) in the fixed phrase "đạt lí đạt tình", meaning to be both reasonable and compassionate, to satisfy both rationality and human feeling.
  • Giải pháp đó thực sự đạt lí đạt tình. (That solution is truly both reasonable and humane.)

Variants and Related Words

• Hợp lí (adj): reasonable, rational. A more common synonym in everyday language.
  • Yêu cầu của bạn rất hợp lí. (Your request is very reasonable.)

Synonyms

• Logical: characterized by clear, sound reasoning.
• Rational: based on reason or logic.
• Reasonable: fair and sensible.
• Just: based on or behaving according to what is morally right and fair.

Related Idioms

• Đạt lí đạt tình: To be both reasonable and compassionate; to satisfy both the rules and human feelings.
  • Cách xử sự của thầy hiệu trưởng thật đạt lí đạt tình. (The principal's handling of the situation was both just and understanding.)