一无所知

• Pinyin: yī wú suǒ zhī
• Desglose de hanzi: 一 = completely (intensifier); 无 = negation, absence; 所 = nominaliser ('that which'); 知 = 矢 + 口 (arrow + mouth — to know accurately, like an arrow hitting its mark)

Significado

No saber absolutamente nada; estar completamente ignorante (de algo).

Often used in: 对某事一无所知 (completely ignorant of something), describing a newcomer unfamiliar with an environment, or someone deliberately kept in the dark. Implies a starting-from-zero state of ignorance — not just incomplete knowledge but none at all. Contrast 了如指掌 (knowing something like the back of one's hand).

Ejemplos

1. 事故发生时，大多数员工对公司潜在的安全隐患一无所知，危机管理的透明度不足令调查人员震惊。
2. 她被空降到这个岗位，对行业背景一无所知，硬是靠着每天十小时的自学在三个月内追上了团队进度。
3. 受害者对自己即将面对的法律程序一无所知，社工为其安排了专业律师提供免费的法律援助。

Guía de uso

Contexto: narrative, education, legal, journalism

Tono: neutral

Correcto

• 当侦查人员发现这名嫌疑人对案发当晚的关键细节一无所知时，意识到此人极有可能只是被人利用的工具，并非真正的主谋。(When investigators found that this suspect had no knowledge whatsoever of key details from the night of the incident, they realised the person was most likely a tool exploited by others, not the true mastermind.)
• 新入职的分析师对该行业的监管框架一无所知，部门主管指派了一名资深同事专门陪同其参加监管机构的情况通报会。(The newly hired analyst had no knowledge at all of the industry's regulatory framework; the department head assigned a senior colleague to accompany them specifically to the regulatory briefing sessions.)

Incorrecto

• 他对这件事一无所知道 — 一无所知 already functions as a complete predicate; adding 道 is redundant and grammatically incorrect; use 一无所知 alone

Origen e historia

一 (completely — intensifier) + 无 (none/without) + 所 (nominaliser, 'that which') + 知 (know/knowledge — 矢 arrow + 口 mouth; to know with the precision of an arrow finding its mark)

Contexto cultural

Época: Classical/Modern

Generación: All ages

Contexto social: Universal