危険な 定義と意味 - メリアム・ウェブスター

DANGEROUS Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition Definition Synonyms Synonym Chooser Example Sentences Word History Phrases Containing Entries Near Cite this Entry Citation Kids Definition Kids Legal Definition Legal More from M-W Show more Show more Citation Kids Legal More from M-W Save Word To save this word, you'll need to log in. Log In dangerous adjective dan·​ger·​ous ˈdān-jə-rəs ˈdān-jərs , -zhrəs Synonyms of dangerous Take our 3 question quiz on dangerous 1 : involving possible injury, pain, harm, or loss : characterized by danger a dangerous job Take our 3 question quiz on dangerous 2 : able or likely to inflict injury or harm a dangerous man dangerously adverb dangerousness noun Synonyms of dangerous Relevance hazardous risky perilous serious unsafe See All Synonyms & Antonyms in Thesaurus Choose the Right Synonym for dangerous dangerous , hazardous , precarious , perilous , risky mean bringing or involving the chance of loss or injury. dangerous applies to something that may cause harm or loss unless dealt with carefully. soldiers on a dangerous mission hazardous implies great and continuous risk of harm or failure. claims that smoking is hazardous to your health precarious suggests both insecurity and uncertainty. earned a precarious living by gambling perilous strongly implies the immediacy of danger. perilous mountain roads risky often applies to a known and accepted danger. shied away from risky investments Examples of dangerous in a Sentence She got into a car accident while driving through a dangerous intersection. He often drives at dangerous speeds. The city can be a dangerous place to live. The storms may cause dangerous flooding. He is wanted for assault with a dangerous weapon. the most dangerous of drugs See More Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback . The case includes special circumstance allegations of multiple murders and using a dangerous and deadly weapon, a knife, both of which could increase any possible penalty if he's convicted. — Madeline Morrison, NBC news , 29 Apr. 2026 Recent water, fish and sediment samples from Mekong tributaries had high levels of dangerous heavy metals, such as arsenic, mercury, lead and cadmium, from rare earth mining, said Warakorn Maneechuket, a researcher at Thailand’s Naresuan University. — Anton L. Delgado, Los Angeles Times , 29 Apr. 2026 This systemic push to keep women in situations that are dangerous for them—for the benefit of men—has killed too many women. — Elizabeth Spiers, Vanity Fair , 29 Apr. 2026 And, look, the most dangerous place a woman can be is in her home or in her relationship. — Max Gao, Variety , 29 Apr. 2026 See All Example Sentences for dangerous Word History Etymology see danger entry 1 First Known Use 15th century, in the meaning defined at sense 1 Time Traveler The first known use of dangerous was in the 15th century See more words from the same century Phrases Containing dangerous armed and dangerous dangerous ground / territory dangerous waters on dangerous ground Browse Nearby Words danger money dangerous dangerous ground/territory See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Dangerous.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/dangerous. Accessed 6 May. 2026. Copy Citation Kids Definition dangerous adjective dan·​ger·​ous ˈdānj-(ə-)rəs 1 : exposing to or involving danger a dangerous mission 2 : able or likely to cause injury dangerous weapons dangerously adverb dangerousness noun Legal Definition dangerous adjective dan·​ger·​ous 1 : creating a risk of bodily injury a dangerous condition of a public building 2 : able or likely to inflict especially serious bodily injury a dangerous criminal with no regard for human life a dangerous animal also : deadly 3 : likely to engage in repeated criminal activity a dangerous offender Note: The activity that an offender is likely to engage in need not involve violence in order for the offender to be deemed dangerous. More from Merriam-Webster on dangerous Nglish: Translation of dangerous for Spanish Speakers Last Updated: 30 Apr 2026 - Updated example sentences Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged More from Merriam-Webster Word of the Day flamboyant See Definitions and Examples » Get Word of the Day daily email! Popular in Grammar & Usage See More More Commonly Mispronounced Words 5 Verbal Slip Ups and Language Mistakes Is that lie 'bald-faced' or 'bold-faced'? The Difference Between 'i.e.' and 'e.g.' Why is '-ed' sometimes pronounced at the end of a word? See More Popular in Wordplay See More The Longest Long Words List 9 Other Words for Beautiful The Words of the Week - May 1 Was 'nervous Nellie' a Real Person? 12 Lovely and Unusual Words for the Natural World See More Popular See More More Commonly Mispronounced Words The Longest Long Words List 9 Other Words for Beautiful See More Games & Quizzes See All Quordle Can you solve 4 words at once? Play Blossom Pick the best words! Play The Missing Letter A daily crossword with a twist Play Name That Tree! A quiz that’s all bark, no bite. Take the quiz See All