dangerous
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dangerous
Describes something that poses a danger and can lead to harm, injuries, or negative consequences.
Das Überqueren der Straße bei roter Ampel ist sehr gefährlich.
Crossing the street at a red light is very dangerous.
The adjective 'gefährlich' (dangerous) is derived directly from the noun 'die Gefahr' (danger). The ending '-lich' is often used to form an adjective from a noun.
In dieser Gegend gibt es viele Gefahren, es ist dort sehr gefährlich.
There are many dangers in this area; it is very dangerous there.
To express for whom or what something is dangerous, you use the preposition 'für' (for) with the accusative.
Rauchen ist gefährlich für die Gesundheit.
Smoking is dangerous for your health.
A very common construction is 'es ist gefährlich, etwas zu tun' (it is dangerous to do something). Here, 'es' introduces the sentence, and the dangerous action follows in an infinitive clause with 'zu'.
Es ist gefährlich, bei Gewitter im See zu schwimmen.
It is dangerous to swim in the lake during a thunderstorm.
'Gefährlich' (dangerous) is often used to describe nouns such as 'Situation' (situation), 'Tier' (animal), 'Gegend' (area), or 'Stoff' (substance). A common intensified form is the word 'lebensgefährlich' (life-threatening).
Er erlitt bei dem Unfall lebensgefährliche Verletzungen.
He suffered life-threatening injuries in the accident.
sure / safe
'sicher' and 'gefährlich' both describe whether something involves risk. 'sicher' means that there is no danger, or only very little danger. 'gefährlich' means that something can cause harm. The words are opposites and can occur in the same topics, for example in traffic, sports, or with devices. Learners should pay attention: a safe path protects you; a dangerous path puts you in danger.
In der Kurve ist schnelles Fahren besonders gefährlich.
Driving fast is especially dangerous on the bend.
Am Abend nehme ich den hellen Weg, weil er sicher ist.
In the evening, I take the well-lit path because it is safe.