[syn: ease, easiness, simplicity, simpleness]
3.  the quality of being easy in behavior or style; 
- Example: "there was an easiness between them"
- Example: "a natural easiness of manner"
The Collaborative International Dictionary of English v.0.48:
Easiness \Eas"i*ness\, n.
   1. The state or condition of being easy; freedom from
      distress; rest.
      [1913 Webster]
   2. Freedom from difficulty; ease; as, the easiness of a task.
      [1913 Webster]
   3. Freedom from emotion; compliance; disposition to yield
      without opposition; unconcernedness.
      [1913 Webster]
            Give to him, and he shall but laugh at your
            easiness.                             --South.
      [1913 Webster]
   4. Freedom from effort, constraint, or formality; -- said of
      style, manner, etc.
      [1913 Webster]
            With painful care, but seeming easiness.
                                                  --Roscommon.
      [1913 Webster]
   5. Freedom from jolting, jerking, or straining.
      [1913 Webster]
WordNet (r) 3.0 (2006):
easiness
    n 1: a feeling of refreshing tranquility and an absence of
         tension or worry; "the easiness we feel when sleeping"
         [syn: easiness, relaxation]
    2: freedom from difficulty or hardship or effort; "he rose
       through the ranks with apparent ease"; "they put it into
       containers for ease of transportation"; "the very easiness of
       the deed held her back" [syn: ease, easiness,
       simplicity, simpleness] [ant: difficultness,
       difficulty]
    3: the quality of being easy in behavior or style; "there was an
       easiness between them"; "a natural easiness of manner"