IPA: /ˈmænɪˌfoʊldli/
KK: /ˈmænɪˌfoʊldli/
In many different ways or forms.
The artist expressed her ideas manifoldly, using various techniques and styles.
Manifoldly → It is formed from "manifold" (from Old English *manigfeald*, meaning many-fold or having many forms) and the suffix "-ly" (meaning in a manner of). The word "manifoldly" means in a manner that is many or varied.
Think of 'many-fold' to remember that 'manifoldly' means in many different ways.
No commonly confused words.