As in "Your brother is entertaining", it would be "Tu hermano es divertido".
If you want to imply "your brother is strange", it would be "Tu hermano es raro".
You would say 'you're too funny' in Spanish as "a su gracioso'.
Comíco
Very funny- Muy cómico
he is not real so u cant say hes funny
No es divertido
You say, "Eso es chistoso."
Ellos son divertidos.
eso es gracioso
El era gracioso.
Soy es grascioso
Heso no fue chistoso
A veces divertido.