IPA: /ˌʌndɪˈfɔːrmd/
KK: /ʌndɪˈfɔrmd/
Not changed in shape or form; remaining in its original state without any distortion.
The sculpture was made of undeformed clay, allowing the artist to create intricate details.
Undeformed → It is formed from "un-" (meaning not) and "deformare" (from Latin, meaning to shape or form). The word "undeformed" means not shaped or not having been altered from its original form.
Think of 'not' ('un-') and 'shaped' ('deformare') to remember that 'undeformed' means something that has not been shaped or altered.