easiness

noun easiness

• nonchalance — the state or quality of being nonchalant; cool indifference or lack of concern; casualness.
• ease — freedom from labor, pain, or physical annoyance; tranquil rest; comfort: to enjoy one's ease.
• indifference — lack of interest or concern: We were shocked by their indifference toward poverty.
• ability — Your ability to do something is the fact that you can do it.
• facility — Often, facilities. something designed, built, installed, etc., to serve a specific function affording a convenience or service: transportation facilities; educational facilities; a new research facility. something that permits the easier performance of an action, course of conduct, etc.: to provide someone with every facility for accomplishing a task; to lack facilities for handling bulk mail.