How to disable predictive text in TextField of Flutter?

If neither enableSuggestions nor autocorrect can solve the problem, try setting keyboardType to TextInputType.visiblePassword.

You can try to add enableSuggestions = false to your textfield widget. This should disable the predictive text from your keyboard as supposed to https://github.com/flutter/flutter/pull/42550.

TextField(
      autocorrect: false,
      enableSuggestions: false,
      keyboardType: TextInputType.emailAddress,
      decoration: new InputDecoration(hintText: "Enter text"),
      autofocus: true,
    ),