The Only Use of
discern
in
The Great Gatsby
- In various unrevealed capacities he had come in contact with such people, but always with indiscernible barbed wire between.†
p. 148.6indiscernible = impossible or difficult to notice or understandstandard prefix: The prefix "in-" in indiscernible means not and reverses the meaning of discernible. This is the same pattern you see in words like invisible, incomplete, and insecure.
Definition:
to notice or understand something -- often something that is not obvious