1. enfant terrible a person whose unconventional behavior embarrasses others
  2. Ivan the Terrible the first czar of Russia (1530-1584)
  3. inconsiderable too small or unimportant to merit attention
  4. unendurable incapable of being put up with
  5. unvendible not fit for sale
  6. inalterable not capable of being changed or altered
  7. unalterable not capable of being changed
  8. unutterable too sacred to be uttered
  9. infantile of or relating to babies
  10. unfavourable not favorable
  11. unalterably in an unalterable and unchangeable manner
  12. unfavorable not favorable
  13. unutterably to an inexpressible degree
  14. infant deathrate the death rate during the first year of life
  15. invertible having an additive or multiplicative inverse
  16. infant mortality the death rate during the first year of life
  17. instant replay the immediate rebroadcast of some action (especially sports action) that has been recorded on videotape
  18. infant's-breath Eurasian herb with ample panicles of small white flowers
  19. infant prodigy a prodigy whose talents are recognized at an early age
  20. unvanquishable incapable of being overcome or subdued

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