IPA: /ʌnˈfɔːrmd/
KK: /ʌnˈfɔrmd/
Not having a clear shape or structure; lacking organization or development.
The artist's ideas were still unformed, waiting for the right moment to take shape.
Unformed → It is formed from "un-" (meaning not) and "formed" (from the root "formare" in Latin, meaning to shape or mold). The word "unformed" means not shaped or lacking a definite form.
Think of 'not' ('un-') having a 'shape' ('formed') — that's why unformed means lacking a definite shape.