Definitions

1. noun

the quality or state of being a Puritan; a strict adherence to Puritan principles, especially in regard to dress, behavior, and morality

“The actress was criticized for her puritaness on stage, choosing to keep her scenes tasteful and modest.”

2. noun

the state or quality of being stern or austere in appearance or behavior

“The stern expression of the principal was an example of her puritaness, which intimidated the students.”