der Analphabet
illiterate person
A person who cannot read and write.
Programme zur Erwachsenenbildung helfen Analphabeten dabei, Lesen und Schreiben zu lernen.
Adult education programs help illiterate people learn to read and write.

illiterate
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illiterate person
A person who cannot read and write.
Programme zur Erwachsenenbildung helfen Analphabeten dabei, Lesen und Schreiben zu lernen.
Adult education programs help illiterate people learn to read and write.

'Der Analphabet' belongs to the N-declension. This means it takes the ending '-en' in all cases except the nominative singular.
Der Kurs hilft Analphabeten beim Lernen.
The course helps illiterate people with learning.
The word comes from Greek. The prefix 'an-' means 'un-' or 'without', and 'Alphabet' refers to the letters. So an 'Analphabet' (illiterate person) is literally someone 'without an alphabet'.
Weltweit gibt es Millionen von Analphabeten.
There are millions of illiterate people worldwide.
In the figurative meaning, people often specify the field in which knowledge is lacking. For this, an adjective or a compound word is usually used.
Wenn es um Autos geht, bin ich ein technischer Analphabet.
When it comes to cars, I'm technically illiterate.
The figurative use as 'someone who has no clue' is often colloquial and is usually used as an exaggeration or self-deprecatingly.
Frag mich nicht nach Politik, da bin ich ein kompletter Analphabet.
Don't ask me about politics; I'm completely illiterate there.
expert
'der Experte' and 'der Analphabet' are opposites here in a figurative sense. An expert has a great deal of knowledge and skill in a particular field. In this figurative meaning, an 'Analphabet' has no knowledge, or almost no knowledge, in a field. Important: literally, 'Analphabet' means a person who cannot read and write. As an opposite of 'Experte', the word only fits figuratively, for example with technology or finance.

Bei Computern ist Paul ein Analphabet und braucht oft Hilfe.
When it comes to computers, Paul is illiterate and often needs help.
Nach dem Unterricht erklärt mein Kollege als Experte die neue Lernplattform.
After the class, my colleague explains the new learning platform as an expert.