unsafe

Word family  noun safe safety adjective safe ≠ unsafe adverb safely

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++un·safe /ˌʌnˈseɪf◂/ ●○○ adjective  1  dangerous or likely to cause harm 危险的，不安全的 The building is unsafe. 那栋大楼不安全。 water that’s unsafe to drink 不能安全饮用的水► see thesaurus at dangerous2  likely to be harmed 处于危险中的 Many people feel unsafe walking alone at night. 很多人觉得一个人走夜路不安全。3  British English an unsafe judgment in a court of law is based on facts that may be wrong 证据不可靠的 an unsafe conviction 证据不足的定罪4. unsafe sex sex without using a condom 不安全的性行为

Examples from the Corpus

unsafe• The boiler burst and the balcony was declared unsafe.• The reasons for the new tunnel were that the old one was a terrible bottleneck, and that it was unsafe.• They feel the world is unsafe and their child needs to be protected.• In many developing societies the lack of basic amenities, such as clean water and proper sanitation, produces an inherently unsafe environment.• If you work in a home office, children may be another source of unsafe noise.• Lots of workplaces seem unsafe or out of control because of these and other kinds of behaviors and situations.• unsafe products• Which is why a society that blithely accepts this included / excluded ledger is an unsafe society.

un·safe adjectiveChineseSyllable  

or to harm Corpus cause dangerous likely

unsafe
un‧safe /ˌʌnˈseɪf◂/ adjective1. dangerous or likely to cause harm:
    The building is unsafe.
    water that’s unsafe to drink
2. likely to be harmed:
    Many people feel unsafe walking alone at night.
3. British English an unsafe judgment in a court of law is based on facts that may be wrong:
    an unsafe conviction
4. unsafe sex sex without using a condom
     

THESAURUS

   ▪ dangerous likely to cause death or serious harm, or cause something bad to happen: Snow and ice are making driving conditions very dangerous. | dangerous drugs | a dangerous criminal
   ▪ risky if something is risky, something bad could easily happen or you could easily make a mistake: Doctors said it was too risky to operate. | a risky situation
   ▪ hazardous /ˈhæzədəs $ -zər-/ especially written dangerous – used especially about substances, jobs, and journeys: hazardous waste | hazardous chemicals | hazardous occupations | The expedition was extremely hazardous.
   ▪ unsafe dangerous because someone is very likely to be hurt – used especially about places or conditions: The roads are unsafe for cyclists. | unsafe working conditions
   ▪ treacherous /ˈtretʃərəs/ formal literary places or conditions that are treacherous are very dangerous for anyone who is walking, driving, climbing etc in them: The snow turned to ice, making conditions treacherous for walkers. | the island’s treacherous coastline | With no lighting, the roads can be treacherous.
   ▪ perilous /ˈperələs, ˈperɪləs/ literary a perilous journey, situation etc is very dangerous: a perilous journey across the sea
   ▪ high-risk [only before noun] a high-risk job, situation, or behaviour is likely to be dangerous: Drug users need to know that sharing needles is high-risk behaviour.

un·safeBrE /ʌnˈseɪf/ 🔊NAmE /ʌnˈseɪf/ 🔊 adjective(of a thing, a place or an activity 东西、地方或活动) not safe; dangerous 不安全的；危险的◆The roof was declared unsafe. 已宣布屋顶有安全隐患。🔊🔊◆It was considered unsafe to release the prisoners. 释放这些囚犯被认为是危险的。🔊🔊◆unsafe sex (= for example, sex without a condom ) 不安全的性行为(of people 人) in danger of being harmed 身处险境的◆He felt unsafe and alone. 他感到既危险又孤单。🔊🔊(BrE, law 法律) (of a decision in a court of law 法庭判决) based on evidence that may be false or is not good enough 证据不可靠（或不足）的◆Their convictions were declared unsafe. 先前给他们的定罪已经宣布证据不足。🔊🔊 OPP safe