Stop the auto-fill/auto-type function. It's bothersome. I don't need Outlook to decide what I'm trying to say!
It gets on my last nerve
Thank you for instructions on how to turn it off! It was so annoying to have to deal with autocomplete.
I found a way of disabling this: Click on the little cog wheel in the top right hand corner to access Outlook settings, and then click on Access All Settings. Then under Compose and Reply scroll down and un-check all: Suggested replies, Text suggestions, ... etc. You can also select what it checks for in terms of grammar and writing style. I believe this should also disable the stupid smiley suggestions when you type in Thanks or Sorry and so on, and outlook highlights it and wants you to pick an annoying gif or smiley.
As someone who uses Outlook for professional correspondence only, I too found these features really annoying! Predictive text might be good for people who either constantly write the same thing or who really are such terrible spellers and thinkers that they can't put a sentence together. For the rest of us it just gets in the way.
Cynthia Rosano commented
You can turn this feature off in the Outlook settings in Mail under Compose and Reply