sturdiness

noun
1
the quality of being physically strong or well made and not easily damaged
استحکام, دوام, پایایی, صلابت, محکمی
synonym robustness(2)
2
the quality of not being easily influenced or changed by other people
استحکام, پایداری, ثبات, استواری, صلابت
the sturdiness of their folk traditions