In each of the following questions, choose the option opposite in meaning to the word or phrase underlined. The instructions given to him are vague.

Answer Details

The word vague means something that is not clearly expressed, or is uncertain and lacking in specificity. When something is vague, it is not precise or definite.
To find a word that is opposite in meaning, we look for terms that imply clarity or exactness. The word "clear" is the best opposite for "vague". "Clear" means something that is easy to perceive, understand, or recognize with no ambiguity. It indicates that there is no confusion or uncertainty, making it the direct opposite of vague.
On the other hand, the words "obscure" and "hazy" both suggest a lack of clarity similar to "vague," while "sure" indicates certainty in belief but does not necessarily relate to clarity of instruction. Therefore, "clear" is the correct choice.