Disable zsh autocorrect entirely

In your .zshrc

 #disable auto correct
 unsetopt correct_all

From the manpage of zsh (zshoptions):

   CORRECT (-0)
          Try to correct the spelling of commands.  Note that, when the HASH_LIST_ALL option is not set or when some directories in the  path  are  not
          readable, this may falsely report spelling errors the first time some commands are used.

   CORRECT_ALL (-O)
          Try to correct the spelling of all arguments in a line.

So the correct option will correct ONLY the commands not the arguments on the line.

The corect_all option will correct commands AND all the arguments on the line.

Ahhhh!!... I see that I was supposed to use 'unsetopt correct' instead of correct_all

collin@mandalay ~
  % unsetopt correct

collin@mandalay ~
  % lear
zsh: command not found: lear