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1. Serving no useful purpose; having no excuse for being
   "a pointless remark";
   - otiose, purposeless, senseless, superfluous, wasted
    
2. Having no points scores
   - scoreless, goalless, hitless
    
3. Not having a point especially a sharp point
   "my pencils are all pointless";
   - unpointed

See also: blunt, unsuccessful, worthless

Antonym: pointed

Encyclopedia: Pointless