Definition: The word "opaque" is an adjective that describes something that is not transparent or clear. If something is opaque, you cannot see through it. It can also mean that something is difficult to understand or not expressed clearly.
In more advanced contexts, "opaque" can also refer to concepts in art, literature, or science. For instance, a literary style may be described as opaque if it is difficult for readers to grasp the meaning without careful analysis.
There aren’t specific idioms or phrasal verbs that use "opaque," but you might encounter phrases like "opaque reasoning" or "opaque language" in discussions about communication.
"Opaque" is a useful word in both physical and figurative contexts. It can describe objects that block light and ideas or messages that are difficult to understand.