blutig
bloody
Covered with blood, consisting of blood, or containing blood.
Nach dem Sturz hatte er ein blutiges Knie.
After the fall, he had a bloody knee.

bloody
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bloody
Covered with blood, consisting of blood, or containing blood.
Nach dem Sturz hatte er ein blutiges Knie.
After the fall, he had a bloody knee.

The adjective 'blutig' (bloody) is derived directly from the noun 'das Blut' (blood). The basic meaning always relates to blood.
Nach dem Kampf war sein Hemd voller Blut.
After the fight, his shirt was full of blood.
In its literal meaning, 'blutig' (bloody) is often combined with minor injuries. Typical examples are 'eine blutige Nase' (a bloody nose), 'ein blutiges Knie' (a bloody knee), or 'eine blutige Wunde' (a bloody wound).
Das Kind kam mit einer blutigen Nase nach Hause.
The child came home with a bloody nose.
In the context of conflicts such as war or disputes, 'blutig' (bloody) has a figurative meaning and means 'violent' or 'with many deaths'. Common collocations are 'ein blutiger Kampf' (a bloody fight/battle) or 'eine blutige Auseinandersetzung' (a bloody confrontation).
Der Film zeigt die blutige Geschichte des Bürgerkriegs.
The film shows the bloody history of the civil war.
When talking about meat in a restaurant, especially steak, 'blutig' (rare) means 'seared only briefly' or 'still raw inside' (in English, 'rare').
Er bestellt sein Steak immer blutig.
He always orders his steak rare.
The expression 'blutiger Anfänger' (complete beginner) is a fixed idiom. It describes a person who has absolutely no experience in an area and is often used colloquially.
Keine Sorge, beim Kochen sind wir alle mal als blutige Anfänger gestartet.
Don't worry, we all started out as complete beginners at cooking at some point.
to learn / experience
'erfahren' and 'blutiger Anfänger' are clear opposites when it comes to skill and practice. An experienced person has already done a lot and knows their way around. A 'blutiger Anfänger' (complete beginner), on the other hand, has little or no experience in an area. Here, 'blutig' does not really mean bloody; it is part of the fixed expression 'blutiger Anfänger'. Use 'erfahren' for confidence and routine, and 'blutiger Anfänger' for being at the beginning with no practice.

Frau Braun ist beim Programmieren noch eine blutige Anfängerin.
Ms. Braun is still a complete beginner at programming.
Beim Termin erklärt uns eine erfahrene Beraterin die nächsten Schritte.
At the appointment, an experienced adviser explains the next steps to us.