Form. Once formed, it will not change. Of being old-fashioned or conformist. It describes no change at all.
Usage combination; As a predicate; It's derogatory
Synonyms remain intact, stick to the rules, and stand still as always.
Antonyms are ever-changing, ever-changing and unpredictable.
Nothing has changed: nothing has changed, and there is no point in changing at all.
The same dust remains.