Words that mean the same thing as useless?
1. Worthless
2. Futile
3. Ineffective
4. Insufficient
5. Inadequate
6. Impotent
7. Insignificant
8. Inconsequential
9. Trivial
10. Null
11. Null and void
12. Redundant
13. Superfluous
14. Unnecessary
15. Unproductive
16. Vain