All 3 Uses

coherent
in
The Murders in the Rue Morgue
(Auto-generated)

The occupation is often full of interest and he who attempts it for the first time is astonished by the apparently illimitable distance and incoherence between the starting-point and the goal.†

incoherence = inability to think clearly; or an instance of not thinking clearly; or describing parts as not fitting together in a consistent or pleasing manner

standard prefix: The prefix "in-" in incoherence means not and reverses the meaning of coherence. This is the same pattern you see in words like invisible, incomplete, and insecure.
incoherent in its words
*

incoherent = not logically consistent

standard prefix: The prefix "in-" in incoherent means not and reverses the meaning of coherent. This is the same pattern you see in words like invisible, incomplete, and insecure.
Madmen are of some nation, and their language, however incoherent in its words, has always the coherence of syllabification.†

coherence = sensibleness or clarity; or describing parts as fitting together in a consistent or pleasing manner

Definitions:

(1) (coherent)
sensible and clear; or describing parts as fitting together in a consistent or pleasing manner
(2) (meaning too rare to warrant focus)
A comprehensive dictionary will have more specialized definitions of coherent such as one used in physics.