puristical
/pʊˈrɪstɪkəl/Definitions
1. adjective
relating to or characteristic of purism, especially in art or literature, where a strict and uncompromising style is maintained.
“The artist’s puristical approach to painting resulted in a unique and striking style.”
2. adjective
extremely or excessively pure or strict.
“The puristical diet she followed was too restrictive for her taste.”