Different ways in which value or harm is delivered and recognised by “-ility” nouns
Ability to complete tasks in reasonable and expected ways, possibly in multiple different ways (flexibility).
Ability to complete tasks in reasonable time and with reasonable responsiveness
Ability to complete those tasks reasonably easily, simply and intuitively.
Ability to complete those tasks reasonably well as accessibility-needs users
Ability to reasonably guard against completing or altering tasks as unauthorised users or prevent authorised users from doing so
Ability to complete tasks reasonable accurately and when needed