IPA: /ˈpiːsəblnəs/
KK: /ˈpisəblnəs/
A state of being calm and free from disturbance or conflict.
The peaceableness of the countryside made it a perfect place for relaxation.
Peaceableness → It is formed from "peace" (from Old French *pais*, meaning tranquility or absence of conflict) and "-able" (meaning capable of) and "-ness" (meaning the state of). The word "peaceableness" refers to the state of being capable of peace or tranquility.
Think of 'peace' as a state of calmness, and remember that 'peaceableness' means the ability to maintain that calm state.