1. prohibited by law
法律所禁止的
It is illegal to drive without a license.
無照駕駛是違法的。
The company was fined for illegal dumping of waste.
該公司因非法傾倒廢物而被罰款。
Illegal Meaning（定義、用法、例句與發音）
illegal
adjective
快速理解
What does "Illegal" mean?What are 2-3 core uses of "Illegal"?
指違反法律或規定的行為或狀態。
- 1
違反法律
EN: against the law
翻譯: 指行為或事物本身被法律明文禁止。
- 2
未經授權
EN: not authorized or permitted
翻譯: 指未獲得法律或相關規章許可的狀態或行為。
- 3
違反規則
EN: against the rules
翻譯: 可延伸指違反特定組織、比賽或活動的正式規定。
- 4
非法所得
EN: obtained or done illegally
翻譯: 形容透過非法手段獲取的事物，如非法收入、非法下載。
小提醒：注意 'illegal' 與 'unlawful' 有時可互換，但 'illegal' 通常指具體違反成文法，語氣較強。
發音（How to Pronounce "Illegal" in English）
How to pronounce "Illegal" in English?"Illegal" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Illegal" from YouTube Videos
Users You Don't Want by Michael Seibel
Y Combinator
“the other hand, they're probably destroying this apartment, doing something highly illegal, getting the police called on them, like deadheaded it out, right, and it's like these are hijack users, like these are not the types of people you want, and like you can be a hijack user.”
(1 out of 22)
Definitions（定義）
What are the definitions of "Illegal"?How does "Illegal" change by context?
2. not authorized by official rules or regulations
不符合官方規則或規定的
The referee called an illegal move during the match.
裁判在比賽中判了一個違規動作。
That was an illegal pass in football.
那是一個美式足球中的違規傳球。
3. involving activities that are against the law, especially in a serious or organized way
涉及（尤指嚴重或有組織的）非法活動的
He was involved in illegal drug trafficking.
他涉及非法毒品販運。
The police cracked down on the gang's illegal operations.
警方取締了該幫派的非法活動。
4. a person who is living or working in a country without official authorization
非法移民；非法勞工
The new policy aims to deport illegals.
新政策旨在驅逐非法移民。
Many illegals work in low-wage jobs.
許多非法勞工從事低薪工作。
Grammar & Patterns（句型）
What are common sentence patterns for "Illegal"?How to make natural sentences with "Illegal"?
| Pattern | Meaning | Example |
|---|---|---|
| illegal + noun | 非法的（事物） | The police discovered an illegal weapon. (警方發現了一件非法武器。) |
| illegal + to + verb | 做…是非法的 | It is illegal to park here. (在這裡停車是違法的。) |
| illegal + for + person + to + verb | 對（某人）來說做…是非法的 | It is illegal for minors to buy alcohol. (未成年人購買酒精飲料是違法的。) |
| illegal + activity/act/action | 非法活動/行為 | He was involved in several illegal activities. (他涉及多項非法活動。) |
| declare/make something illegal | 宣布/使某事物非法 | The government made the substance illegal. (政府將該物質列為非法。) |
| completely/totally illegal | 完全非法 | Their actions were completely illegal. (他們的行為是完全非法的。) |
用法說明
How is "Illegal" different from similar structures?What usage mistakes are common with "Illegal"?
illegal doing vs illegal to do
- "illegal doing" 通常用於描述一個概括性的、被視為非法的行為或活動本身。
- "illegal to do" 則用於具體說明做某件事是違法的，常用於「It is illegal to + 動詞」的句型中。
- 在修飾名詞時，通常使用 "illegal + 名詞" 的結構（如 illegal act），而非 "illegal doing"。 EN: The police are cracking down on illegal dumping of waste. 翻譯: 警方正在嚴厲打擊非法傾倒廢物的行為。
EN:It is illegal to dump waste in this protected area.
翻譯:在這個保護區內傾倒廢物是違法的。
總結建議
在描述具體某個行為違法時，使用「It is illegal to + 動詞」的句型最為自然且準確。
易混淆對比
What is the difference between "Illegal" and similar words?How to choose "Illegal" vs alternatives?
illegal vs unlawful
兩者皆指「不合法」，但 'illegal' 通常用於描述具體行為或物品違反成文法，而 'unlawful' 語意更廣，可指違反法律、規則或道德規範的行為。
illegal vs illegitimate
'illegal' 強調違反法律，而 'illegitimate' 主要強調缺乏正當性、權威性或合法性，不一定觸犯具體法律條文。
illegal vs criminal
'illegal' 泛指任何違法行為，而 'criminal' 特指觸犯刑法、性質較為嚴重且通常會受到刑事處罰的犯罪行為。
口語用法
How is "Illegal" used in spoken English?What is the spoken vs formal difference for "Illegal"?
引述
在對話中，當引述或轉述他人的指控或法律觀點時，常用此詞。 EN: He kept saying the whole operation was illegal. 翻譯: 他一直說整個操作都是非法的。
EN:So you're telling me you didn't know it was illegal?
翻譯:所以你是想告訴我你不知道這是非法的？
語氣強調
用於加強語氣，表達對某行為明顯違規的不滿或驚訝。 EN: That's just completely illegal! 翻譯: 那根本就是完全違法！
EN:Wait, that sounds totally illegal to me.
翻譯:等等，這在我聽來完全是違法的。
停頓填充
在組織思緒或尋找合適措辭時，作為短暫的停頓填充詞。 EN: The whole setup was... illegal, for sure. 翻譯: 整個安排... 肯定是非法的。
EN:It's not just against policy, it's—well—illegal.
翻譯:這不只是違反政策，這是——嗯——違法的。
正式寫作注意：在正式法律文件或學術寫作中，應避免上述口語用法，需使用更精確、客觀的表述，例如「構成違法行為」、「觸犯第X條法規」等。
常見短語
What common collocations use "Illegal"?What fixed phrases with "Illegal" should I remember?
illegal activity
illegal + noun
非法活動
illegal immigrant
illegal + noun
非法移民
illegal drugs
illegal + noun
非法藥物；毒品
declare something illegal
verb + illegal
宣布某事為非法
illegal downloading
illegal + gerund
非法下載
strictly illegal
adverb + illegal
嚴格禁止的；絕對非法的
illegal parking
illegal + noun
違規停車
render something illegal
verb + illegal
使某事成為非法
常見錯誤
What are common mistakes with "Illegal"?Which "Illegal" sentences look correct but are wrong?
×He was arrested for an illegal.
✓He was arrested for an illegal act/activity.
"Illegal" 是形容詞，不能單獨當作名詞使用。需要加上一個名詞（如 act, activity, substance）或使用名詞形式 "illegality"。
×It's illegal to break a company policy.
✓It's against company policy / a violation of company policy to do that.
"Illegal" 特指違反國家或地區「法律」(law) 的行為。違反公司規定、學校校規或道德規範，但不觸犯法律的，應使用 "against the rules", "prohibited", 或 "not allowed"。
×It's illegal to not wear a seatbelt.
✓It's illegal not to wear a seatbelt. / It is illegal to fail to wear a seatbelt.
在正式英語中，不定詞的否定形式通常是 "not to do"，將 "not" 置於 "to" 之前。"to not do"（分裂不定詞）雖然在現代英語中愈來愈被接受，但在描述法律條文等正式場合，"not to do" 仍是更標準的用法。
×Smoking is illegal in this park.
✓Smoking is prohibited / forbidden / not allowed in this park.
"Illegal" 意味著該行為違反法律，可能導致法律後果（如罰款、起訴）。而公園禁菸通常是地方規章或業主規定，使用 "prohibited" 或 "forbidden" 更準確，除非有明確的法律條文將其定為刑事犯罪。
×They were involved in an activity illegal.
✓They were involved in an illegal activity.
在英文中，大多數單音節或雙音節的形容詞（如 illegal）通常置於所修飾的名詞之前。後置形容詞的情況較少，多用於某些固定片語或修飾不定代名詞（如 something illegal）。
詞形變化
What are the word forms of "Illegal"?What are tense/participle forms of "Illegal"?