Something that poses no danger and carries no risk of injury, damage, or negative consequences.
example
Die Wanderung ist auch für Kinder geeignet, da der Weg völlig ungefährlich ist.
The hike is also suitable for children because the path is completely harmless.
Usage tips
Word formation with 'un-'
The prefix 'un-' is used to express the opposite of an adjective. 'Ungefährlich' (harmless) is the opposite of 'gefährlich' (dangerous) and means 'not dangerous'.
EXAMPLE
Diese Chemikalie ist in kleinen Mengen völlig ungefährlich.
This chemical is completely harmless in small amounts.
Word family
The word belongs to the word family of 'die Gefahr' (danger). From the noun 'Gefahr' comes the adjective 'gefährlich' (dangerous), and with the prefix 'un-' its opposite 'ungefährlich' (harmless) is formed.
EXAMPLE
Trotz seines Aussehens ist dieser Skorpion für Menschen ungefährlich.
Despite its appearance, this scorpion is harmless to humans.
Use with 'für'
If you want to state for whom or what something is harmless, use the preposition 'für' followed by the accusative.
EXAMPLE
Das Spielzeug ist auch für Kleinkinder ungefährlich.
The toy is also harmless for toddlers.
Compare with
near_synonym · confusable
ungefährlich vs sicher
sure / safe
'sicher' and 'ungefährlich' can both mean that there is no danger. 'ungefährlich' mainly says: something is not dangerous and normally does not cause harm. 'sicher' is broader. It can also mean that someone or something is protected, for example by rules, technology, or caution. The words can be confused because both fit when talking about danger. 'ungefährlich' tends to describe the thing itself. 'sicher' often also describes the situation or the protection.
ungefährlich
Die Nachbarin erklärt in der E-Mail, dass der kleine Hund ungefährlich ist.
The neighbor explains in the email that the small dog is harmless.
sicher
Nach dem Gespräch fühlte sich Mila in der neuen Wohnung sicher.
After the conversation, Mila felt safe in the new apartment.