unhesitating / safe
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unhesitating
Without hesitating, without doubts, or without thinking about possible negative consequences. It can mean both carefree and trusting as well as reckless.
Er folgte dem Rat seines Freundes bedenkenlos.
He followed his friend’s advice unhesitatingly.
The word is made up of 'Bedenken' (doubts, concerns) and the ending '-los' (without). 'Bedenkenlos' therefore literally means 'without concerns' or 'without worries'.
Du kannst diesem Experten bedenkenlos vertrauen.
You can trust this expert without hesitation.
The meaning depends strongly on the context. If the word refers to a person’s action, it often means 'without hesitation' or 'recklessly'. If it refers to a thing (e.g. a food), it means 'harmless' or 'safe'.
Er hat das Geld bedenkenlos ausgegeben.
He spent the money without hesitation.
'Bedenkenlos' is very often used as an adverb to describe a verb. It answers the question 'How?' and describes the manner of an action.
Ich kann Ihnen dieses Buch bedenkenlos empfehlen.
I can recommend this book to you without hesitation.
In the meaning of 'safe' or 'harmless', the word is often used in formal contexts. Typical verbs are 'verwenden' (to use), 'genießen' (to enjoy/consume), or 'konsumieren' (to consume).
Das Wasser aus diesem Brunnen kann man bedenkenlos trinken.
You can safely drink the water from this well.
sure / safe
'sicher' and 'bedenkenlos' can both mean that you do not need to worry. 'sicher' more often describes the condition of something: it is not dangerous or works reliably. 'bedenkenlos' often describes that you can do, use, or eat something without doubts or worry. For example, you might say that a product is 'sicher' and that you can use it 'bedenkenlos'. However, 'bedenkenlos' can also sound negative if someone does not think about the consequences at all.
Das Wasser aus dieser Quelle kann man bedenkenlos trinken.
You can drink the water from this spring without worry.
Dieser Kindersitz ist sicher und einfach zu benutzen.
This child car seat is safe and easy to use.