1. formidable extremely impressive in strength or excellence
  2. fermentable capable of being fermented
  3. irrefutable impossible to deny or disprove
  4. preventable capable of being prevented
  5. profound situated at or extending to great depth
  6. forgettable easily forgotten
  7. fervently with strong emotion or zeal
  8. undefendable not defended or capable of being defended
  9. refutable able to be refuted
  10. unpreventable not preventable
  11. defendable capable of being defended
  12. fordable shallow enough to be crossed by walking or riding on an animal or in a vehicle
  13. insurmountable not capable of being overcome
  14. surmountable capable of being surmounted or overcome
  15. presentable fit to be seen
  16. comprehendible capable of being comprehended or understood
  17. representable expressible in symbolic form
  18. roundtable a meeting of peers for discussion and exchange of views
  19. formidably in a formidable manner
  20. commendable worthy of high praise