easiness  
noun [ U ] uk/ˈiː.zi.nəs/ us/ˈiː.zi.nəs/
  (COMFORT)      
 舒适,安逸;安心
the quality of being comfortable or relaxed, or free from worry or pain
  I enjoyed great easiness and comfort during my father's life. 我父亲活着的时候,我的生活相当安逸和舒适。 
 He didn't understand why other people didn't have the same easiness as him. 他不明白为什么其他人不像他那样无忧无虑。 
 Synonym: ease 
 See: easy
 - More examples
 - There's an easiness to our friendship - there's no tension or expectation on either side.
 - I remember him for his smoothness and easiness of relating to people.
 - He has an easiness that I admire and try to emulate.