1. inevitable incapable of being avoided or prevented
  2. invidious containing or implying a slight or showing prejudice
  3. innovator someone who helps to open up a new line of technology or art
  4. inodorous having no odor
  5. invader someone who enters by force in order to conquer
  6. inveterate habitual
  7. innovative being like nothing done or experienced or created before
  8. endorse approve of
  9. indorse sign as evidence of legal transfer
  10. indoors within a building
  11. Invirase a weak protease inhibitor used in treating HIV
  12. inverse turned backward in order or nature or effect
  13. in vitro in an artificial environment outside the living organism
  14. confederacy a union of political organizations
  15. invertase an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose
  16. in force exerting force or influence
  17. Confederacy the southern states that seceded from the United States in 1861
  18. inferior of or characteristic of low rank or importance
  19. intrados the interior curve of an arch
  20. invigorate give life or energy to