What term describes something that is highly enlightening?

The term "illuminating" refers to something that provides insight, clarity, or enlightenment—effectively shedding light on a subject or concept. When something is described as illuminating, it suggests that it enhances understanding or reveals deeper meanings, making complex ideas more accessible. This is often used in contexts such as literature, education, or discussions where new perspectives and knowledge are shared.

In contrast, terms like "opaque," "confusing," and "ambiguous" describe qualities that hinder understanding rather than enhance it. "Opaque" suggests that something is not transparent or clear, making comprehension difficult; "confusing" implies that information is presented in such a way that it is hard to follow; and "ambiguous" indicates uncertainty or vagueness in meaning. Thus, these options do not capture the enlightening quality denoted by "illuminating."