Which word refers to having knowledge or being intelligent?

The word "knowledgeable" specifically denotes a person who possesses knowledge and has intelligence in a particular subject or more broadly. It conveys an understanding or awareness that is acquired through education, experience, or study. This term encapsulates the idea of being informed and means that a person is well-versed in various topics or areas of interest, thus reflecting a high level of cognitive ability and comprehension.

In contrast, the other terms reflect a lack of knowledge or awareness. "Uninformed" suggests a state of not having necessary information, while "ignorant" implies a lack of knowledge or awareness about particular subjects. "Indifferent" describes a lack of interest or concern rather than a lack of knowledge, making it irrelevant to the context of intelligence or knowledge.

Thus, "knowledgeable" is the clear choice here, as it directly communicates the concept of being knowledgeable and intelligent.