Question

Shaking this off with a gasp and a struggle, I uplifted myself upon the pillows, and, peering earnestly within the intense darkness of the chamber, hearkened -- I know not why, except that an instinctive spirit prompted me -- to certain low and indefinite sounds which came, through the pauses of the storm, at long intervals, I knew not whence. Overpowered by an intense sentiment of horror, unaccountable yet unendurable, I threw on my clothes with haste.
Which word from this excerpt could be used to argue that the narrator is unreliable?

Answer 1

Answer:

The word is "overpowered".

Explanation:

The untrustworthy narrator is the one who has his credibility compromised, either by lying or by presenting questionable sanity. The narrator of the excerpt shown in the question above is clearly questionable in sanity, because the word "Overpowered" shows how the narrator is unbalanced because of a sense of horror. Because of this imbalance, we cannot fully trust what the narrator says, so he is an unreliable narrator.

Answer 2

Unaccountable would render the author