Discouraging
Part of speech: verb
Definition: To extinguish the courage of; to dishearten; to depress the spirits of; to deprive of confidence; to deject.
Part of speech: adjective
Definition: that causes discouragement
Example sentence: It's discouraging to think how many people are shocked by honesty and how few by deceit.
Dissuasive
Part of speech: adjective
Definition: Tending to dissuade, or divert form a measure or purpose; dehortatory.