Design is a broad topic. This post won’t approach the adjective qualifying a style with simple forms and a pure appearance. No. Design is broader than a sleek car or an harmonious living room.
Now a quiz:
https://upload.wikimedia.org/wikipedia/commons/2/24/33._Witt...
Is that door by mr. uber rational Wittgenstein a specimen of form follows function, or do you note 'aesthetics' saying gutten tag there?