
1) Adaptability 2) Detergence 3) Detergency 4) Dexterity 5) Effectiveness 6) Efficiency 7) Helpfulness 8) Mileage 9) Practicability 10) Practicableness 11) Practicality 12) Serviceability 13) Serviceableness 14) Usableness 15) Use 16) Utility 17) Worth
Found on
https://www.crosswordclues.com/clue/usefulness

1) Advantage 2) Benefit 3) Constructiveness 4) Convenience 5) Effectiveness 6) Efficacy 7) Fruitfulness 8) Function 9) Helpfulness 10) Practicality or handy quality 11) Productivity 12) Quality 13) Service 14) Utility 15) Value
Found on
https://www.crosswordclues.com/clue/usefulness

• (n.) The quality or state of being useful; utility; serviceableness; advantage.
Found on
http://thinkexist.com/dictionary/meaning/usefulness/

A requirement for obtaining a utility patent. A patented invention must have some functional purpose or utility. The purpose does not have to be groundbreaking; it can be solely for amusement or a minor improvement on an existing invention.
Found on
http://www.nolo.com/dictionary/usefulness-term.html
No exact match found.