1. intrinsic belonging to a thing by its very nature
  2. intransigent impervious to pleas, persuasion, requests, or reason
  3. introspective given to examining own sensory and perceptual experiences
  4. interdependent mutually reliant
  5. intricate having many complexly arranged elements; elaborate
  6. intriguing capable of arousing interest or curiosity
  7. interdependence a relation between entities that rely on each other
  8. introductory serving to open or begin
  9. intransigence stubborn refusal to compromise or change
  10. introduction the act of beginning something new
  11. intralinguistic within a particular language
  12. starting time the time at which something is supposed to begin
  13. John Tradescant English botanist who was one of the first to collect specimens of plants (1570-1638)
  14. intrigue a crafty and involved plot to achieve your ends
  15. entrenching tool a hand shovel carried by infantrymen for digging trenches
  16. intrasentential of or relating to constituents within a sentence
  17. interdisciplinary drawing from two or more fields of study
  18. intruding projecting inward
  19. introduce bring something new to an environment
  20. introspection contemplation of your own thoughts and desires and conduct