n.

1. The state or condition of being easy; freedom from distress; rest.

2. Freedom from difficulty; ease; as, the easiness of a task.

3. Freedom from emotion; compliance; disposition to yield without opposition; unconcernedness.

Give to him, and he shall but laugh at your easiness.

South.

4. Freedom from effort, constraint, or formality; -- said of style, manner, etc.

With painful care, but seeming easiness.

Roscommon.

5. Freedom from jolting, jerking, or straining.

---

noun

1. The ability to perform without apparent effort: ease, effortlessness, facileness, facility, readiness. See easy/hard.
2. Freedom from constraint, formality, embarrassment, or awkwardness: casualness, ease, informality, naturalness, poise, spontaneity, unceremoniousness, unrestraint. See restraint/unrestraint, tighten/loosen.

IN BRIEF: Freedom from difficulty or hardship or effort; A feeling of refreshing tranquility and an absence of tension or worry.

Note: click on a word meaning below to see its connections and related words.

The noun has 2 meanings:

Meaning #1: a state of refreshing tranquility
  Synonym: relaxation

Meaning #2: freedom from difficulty or hardship or effort
  Synonyms: ease, simplicity

---