to advise against sth. (The person getting the advice is in Dative. The verb always goes with "von" (or "davon"). It sounds weird to skip it.)
Opposite (closest): raten
We'll learn about "raten" and why it is guessing and giving advice at the same time. Also: lots of really useful prefix versions and other nice words.
raten, der Rat, beraten, verraten, erraten, das Rätsel