1
warrantless + noun
常见搭配包括 warrantless search（无证搜查）、warrantless arrest（无证逮捕），多用于法律语境。
The police conducted a warrantless search of the apartment.
警方对该公寓进行了无证搜查。
无授权令的；无正当理由的
先理解核心含义，再看它在真实句子里的用法。
无授权令的；无正当理由的
done without a legal warrant; unauthorized or unjustified
The police conducted a warrantless search of the apartment.
警方对该公寓进行了无证搜查。
法律语境中常指无搜查令或逮捕令的，如 warrantless search
搜查、逮捕等未经授权令状而执行的。
Of a search, arrest, etc. executed without a warrant.
The judge threw out the evidence because it came from a warrantless search of the suspect's phone.
法官驳回了证据，因为它来自对嫌疑人手机的无授权令搜查。
The tenants complained that the warrantless inspection of the apartment violated their privacy.
租户们抱怨说，对公寓的无授权令检查侵犯了他们的隐私。
A warrantless arrest is only permitted in certain emergency situations.
无授权令逮捕只在某些紧急情况下才被允许。
常见搭配包括 warrantless search（无证搜查）、warrantless arrest（无证逮捕），多用于法律语境。
The police conducted a warrantless search of the apartment.
警方对该公寓进行了无证搜查。
表语用法强调行为缺乏法律授权，常见于正式法律论述。
The court found the seizure was warrantless and therefore unlawful.
法院认定这次扣押是无证扣押，因此不合法。
Not this
The police searched his phone warrantless.
Use this
The police searched his phone without a warrant.
warrantless 是形容词，只能修饰名词，不能作状语修饰动词；表示“没有搜查令地”要用介词短语 without a warrant。
Not this
The teacher's criticism was warrantless.
Use this
The teacher's criticism was unwarranted.
warrantless 在现代英语中主要用于法律语境，表示“没有搜查/逮捕令的”；表示一般行为“没有正当理由的、不该有的”时应用 unwarranted。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
无证搜查
The court ruled that the warrantless search was unconstitutional.
法院裁定这次无证搜查违宪。
无证逮捕
Warrantless arrests are permitted when an officer witnesses a crime.
当警察目睹犯罪行为时，允许无证逮捕。
无授权令的监控
The agency's warrantless surveillance program sparked a public debate.
该机构的无授权令监控项目引发了公众辩论。
无证进入
Emergency situations may justify a warrantless entry into a home.
紧急情况可能证明无证进入住宅是正当的。
无证窃听
The evidence from the warrantless wiretap was inadmissible in court.
无证窃听获得的证据在法庭上不可采信。
无证扣押
The warrantless seizure of personal property requires a valid exception.
无证扣押个人财产需要有有效的例外情形。
Use warrantless naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把warrantless拆成warrant（搜查令）+less（没有），记成“没有搜查令就行动”，即无授权的、无正当理由的。
语域：formal 常见场景：court rulings、police reports、news articles warrantless 通常用于法律语境和新闻报道，指没有搜查令或逮捕令的情况下进行的行为，属于正式用语；日常口语中较少用。
None of these words rhymes with 'warrantless' /ˈwɒrəntlɪs/. They all share the spelling ending -less, but the stressed vowel differs, so they are lookalikes, not rhymes. Also note the target's suffix is transcribed /lɪs/, while in these words it is usually /ləs/.
Dictionary facts from ECDICT, WIKTIONARY.