Is prepared an adjective or adverb?

"Prepared" can be both an adjective and a verb, but it is not an adverb.

Here's why:

* Adjective: "Prepared" describes a noun. For example, "He is a prepared student."

* Verb: "Prepared" is the past tense of the verb "prepare." For example, "She prepared dinner for her guests."

There is no adverb form of "prepared". If you want to modify a verb, you would use an adverb like "well" or "thoroughly". For example:

* "She thoroughly prepared for the presentation."

* "He well prepared himself for the interview."

Let me know if you have any other words you'd like to analyze!