That which cannot be understood

The correct answer is: B. Unintelligible

• Illegible means difficult or impossible to read. For example, a handwritten letter that is written in a very messy or illegible handwriting.
• Unknown means not known or not familiar to someone. For example, a person’s name that is unknown to you.
• Undecipherable means impossible to decipher or interpret. For example, a code that is undecipherable.

Unintelligible is the best answer to the question “That which cannot be understood” because it means not able to be understood or comprehended. This could be due to the language being used, the way the information is presented, or the person’s own lack of knowledge or understanding.