As used in the passage, which of the following is the closest alternative to the word "arcane"?
Mysterious
The word “arcane” is used in the 1st paragraph of the passage in the statement – “The culture of the conversation makes the words arcane.”
Secret and covert are synonyms, hence can be rejected. Perfidy, mostly used to mean disloyal, can also mean ‘treacherous’. But on reading the adjacent sentences in the 1st paragraph, we can infer that there is no negative connotation. Hence, perfidious is not a suitable alternative.
The author states in the 1st paragraph, “the talk is hard to follow when one has not made a habit of listening to it for a while. The culture of the conversation makes the words arcane.” Here, it means ‘difficult to understand’. Therefore, mysterious (baffling, puzzling, inexplicable) fits the meaning best.
Hence, the correct answer is option (a).