dangerous

/ˈdeɪndʒərəs/ (bre, ipa) · /ˈdeɪndʒərəs/ (ame, ipa) · /ˈdān-jə-rəs ˈdān-jərs, -zhrəs/ (ame, mw)

dangerous — 形容詞

  • dangerouspositive
  • more dangerouscomparative
  • most dangeroussuperlative

1. Someone or something that is dangerous can easily hurt you. The word describes p

1.形容詞A2
釋義

危險

可能造成身體傷害的

Someone or something that is dangerous can easily hurt you. The word describes people, animals, objects, places, or actions that are not safe because they threaten your body or your life.

例句

Walid was warned not to swim in the river because the current was dangerous.

Walid 被警告不要在那條河裡游泳，因為水流很危險。

The old staircase was so dangerous that the landlord finally agreed to fix it.

那條舊樓梯太危險了，房東最後終於同意修理它。

so + adjective + that clause for result

同義詞
  • hazardous

    more formal; often describes materials, conditions, or work environments rather than people or animals

  • unsafe

    focuses on lack of safety or protection; common for buildings, products, or roads

  • risky

    implies a choice with uncertain outcome; usually less severe than 'dangerous'

  • perilous

    formal or literary; suggests a very high level of danger

反義詞
  • safe

    the most common opposite; free from danger or risk

  • harmless

    unable to cause harm; often used for animals or substances

文法句型

be + dangerous

dangerous + noun

it is dangerous + to-infinitive

so + dangerous + that clause

用法筆記

Frequently describes people, animals, objects, places or activities that pose a direct physical threat. The most common patterns are 'be + dangerous' (The dog is dangerous) and 'dangerous + noun' (a dangerous road).

常見錯誤

❌The chemicals are danger to humans.
✅The chemicals are dangerous to humans.
💡'danger' is a noun; 'dangerous' is the adjective form.
❌I am dangerous to walk alone at night.
✅It is dangerous to walk alone at night.
💡Use the 'it is dangerous + to-infinitive' pattern, not a personal subject.

2. Used when a situation, decision, or idea is likely to lead to trouble, loss, or

2.形容詞B1
釋義

有害；不智

可能導致壞結果的

Used when a situation, decision, or idea is likely to lead to trouble, loss, or other negative outcomes, even though no one is at risk of physical injury or death.

例句

Eleni knew that spreading rumours about her colleague was a dangerous game to play.

Eleni 知道散佈同事的謠言是一種危險的把戲。

collocation: a dangerous game

It can be dangerous for a company to ignore customer complaints for too long.

公司長期忽視顧客投訴可能是很危險的。

it + be + dangerous + for + noun + to-infinitive

同義詞
  • risky

    common alternative; focuses on uncertainty of outcome rather than severity of harm

  • problematic

    less severe; suggests difficulties rather than real danger

  • dicey

    informal; describes a situation that may go wrong

反義詞
  • safe

    the general opposite; not likely to cause problems

  • sound

    describes a sensible decision or plan that will not cause trouble

文法句型

be + dangerous

dangerous + abstract noun

it is dangerous + for + noun + to-infinitive

dangerous + to + noun phrase

用法筆記

Often used with abstract nouns such as 'game', 'move', 'step', 'policy', or 'precedent' to describe choices or situations that create the risk of a bad outcome. Unlike sense 1, the risk here is to reputation, money, relationships, or stability — not to physical safety.

常見錯誤

❌The stock market is a dangerous place.' (when referring to financial risk, this could be confused with physical danger)
✅Investing in the stock market without research is a dangerous strategy.
💡Specify the abstract risk to avoid confusion with physical danger.