The default Setting on iPhone is to allow the keyboard to learn from your typing style, so that it can automatically come up with words and phrases that you are likely to use in your conversation.
While this feature should help in typing faster, it often goes wrong and hinders typing by suggesting incorrect or misspelled words and unnecessarily replacing typed words with incorrect or unwanted words.
The solution for this problem is to Clear Keyboard History on iPhone and the permanent solution is to disable the Predictive Text feature on your iPhone.
Another reason for clearing Keyboard History or Disabling Predictive Text on iPhone or iPad is to prevent your device from showing pet names or code words as you are typing, especially when you are with people.
1. Clear Keyboard History on iPhone
If your iPhone or iPad is suggesting misspelled words or replacing typed words with its own words, it is time to clear the Keyboard History on your device.
1. Go to Settings > General > Transfer or Reset iPhone.
2. Next, tap on Reset > On the pop-up, select Reset Keyboard Dictionary.
This will erase all the words that iPhone has learnt from your typing, including all misspelled words, pet names and code words stored in the Keyboard Dictionary.
2. Disable Auto-Correction
Another solution is to disable the Auto-Correction feature, which still allows iPhone to suggest words, but prevents it from automatically correcting your typed words.
1. Go to Settings > General > Keyboard.
2. On the next screen, move the toggle next to Auto-Correction to OFF position.
After this, you should no longer find your iPhone automatically correcting words that you type in iMessage and other Apps.
3. Permanently Disable Keyboard History on iPhone
If you do not want the hassle of clearing keyboard history from time to time, you can totally prevent iPhone from monitoring your typing and adding words to keyboard history by disabling Predictive Text.
1. Go to Settings > General > Keyboard.
2. On the next screen, move the toggle next to Predictive Text to OFF position.
After this, you will no longer find your iPhone bothering you with word suggestions and replacing typed words.