How to disable autocorrect for Message in macOS

Message for macOS automatically checks and corrects spelling mistakes while you're typing. It is a handy feature, but it's more of a nuisance for someone like me who doesn't always type in perfect English on purpose. Even more so is for those who communicate via other English or Roman alphabet-based languages.

Autocorrect for Message in macOS can be disabled from Finder's configuration menu.

1. Click on Edit at the Message menu.
2. Click on Spelling and Grammar option.
3. Click on Correct Spelling Automatically to remove the tick mark.