Dictionary:

dissuasion

  (dĭ-swā'zhən)

The act or an instance of dissuading.

[Middle English, from Old French, from Latin dissuāsiō, dissuāsiōn-, from dissuāsus, past participle of dissuādēre, to dissuade. See dissuade.]

The noun has 3 meanings:

Meaning #1: a communication that dissuades you

Meaning #2: persuasion not to do something; the act of talking someone out of an intended course of action

Meaning #3: deterrence by argument or reasoning or entreaty
  Antonym: persuasion (meaning #3)