What is the greek word for bad?

There isn't one single perfect Greek word for "bad," as the best translation depends on the context. Here are a few options, with nuances in meaning:

* κακός (kakós): This is a general word for "bad," "evil," or "wicked," often referring to moral badness.

* κακία (kakía): This is the noun form of *kakós*, meaning "wickedness" or "evil."

* χείρων (cheirōn): This means "worse" (comparative of *kakós*).

* μοχθηρός (mochthēros): This implies "malicious," "wicked," or "villainous."

* φαῦλος (phaulos): This suggests "worthless," "inferior," or "base."

The best choice depends heavily on the specific situation and what kind of "bad" you're trying to express.