1. intractable difficult to manage or mold
  2. intricately with elaboration
  3. intricate having many complexly arranged elements; elaborate
  4. intractably in an intractable manner
  5. electric automobile a car that is powered by electricity
  6. interchangeable permitting mutual substitution without loss of function
  7. intractability the trait of being hard to influence or control
  8. unfathomable impossible to come to understand
  9. unredeemable insusceptible of reform
  10. contractable (of disease) capable of being transmitted by infection
  11. interchangeably in an interchangeable manner
  12. intrinsic belonging to a thing by its very nature
  13. eccentric conspicuously or grossly unconventional or unusual
  14. intrigue a crafty and involved plot to achieve your ends
  15. intradermal relating to areas between the layers of the skin
  16. intradermally into the skin
  17. interactive capable of influencing each other
  18. intramural carried on within the bounds of an institution or community
  19. interrogatively in a questioning format
  20. inestimable beyond calculation or measure