how many possibilities translation of ばかな/ばかね？


I know ばか literally means "stupid/idiot" but i remember a scene when i was re-
watching naruto. the context is:

"sarutobi asuma just got news that his close skilled friend (old comrade of
him) was killed by akatsuki, he was very shocked and could not believe such a
very strong, skilled friend was killed easily by akatsuki and then he said
'ばかな! bla bla bla'." i am sorry i can't fully provide what he said because my
limited japanese skill.

I dont know equivalent of that word in english in the context above, maybe "
huh, how can?". correct me if i am wrong.

so when is 'ばかな' used other than to insult people? and is it okay to say it to
close friend (older) as expression?




"Impossible!"

"I can't believe it!"

"No way!"

These can be expressed with "ばかな！".




"Impossible!"

"I can't believe it!"

"No way!"

These can be expressed with "ばかな！".

