Definition

1. Adjective:
   • Valid, sound, well-founded: Refers to a statement, argument, or reason that is logically correct, justified, and based on solid evidence or reasoning.
   • Appropriate, pertinent, apt: Describes a word, comment, or action that is fitting, suitable, and precisely relevant to the situation or context.
   • Exact, precise: Indicates something that is accurate and correct in its details or application.

Usage Examples

• Adjective:
  • Lý lẽ của anh ấy rất xác đáng. (His reasoning is very sound.)
  • Đó là một nhận xét xác đáng về tình hình. (That is a pertinent remark about the situation.)
  • Cô ấy đã đưa ra một ví dụ xác đáng. (She gave a precise example.)

Advanced Usage

• Used formally in academic, legal, or analytical contexts to evaluate the quality of an argument or evidence.
  • Báo cáo cần đưa ra các bằng chứng xác đáng. (The report needs to provide valid evidence.)

Variants and Related Words

• Xác thực (adj): authentic, verified.

  • Thông tin cần phải xác thực. (The information must be authentic.)

• Hợp lý (adj): reasonable, logical.

  • Đề xuất đó nghe có vẻ hợp lý. (That proposal sounds reasonable.)

Synonyms

• Valid: having a sound basis in logic or fact.
• Pertinent: relevant or applicable to a particular matter.
• Sound: based on valid reasoning or evidence.
• Apt: especially appropriate or suitable.

Related Idioms

• Lời nói xác đáng: a well-justified or apt statement.
  • Mọi người đều gật đầu đồng ý với những lời nói xác đáng của ông ấy. (Everyone nodded in agreement with his well-justified statements.)

verb

1. true, exact