1. insidious working or spreading in a hidden and usually injurious way
  2. Einstein physicist born in Germany who formulated the special theory of relativity and the general theory of relativity; Einstein also proposed that light consists of discrete quantized bundles of energy (later called photons) (1879-1955)
  3. instance an item of information that is typical of a class or group
  4. einsteinium a radioactive transuranic element produced by bombarding plutonium with neutrons
  5. intense possessing a distinctive feature to a heightened degree
  6. Einsteinian of or relating to Albert Einstein or his theories
  7. instancy the quickness of action or occurrence
  8. instant a very short time
  9. incidence the relative frequency of occurrence of something
  10. unsteadiness the quality of not being steady or securely fixed in place
  11. instinct inborn pattern of behavior often responsive to stimuli
  12. earnestness the trait of being serious or sincere
  13. incident a single distinct event
  14. insolence the trait of being rude and impertinent
  15. insolent marked by casual disrespect
  16. insistence the act of insisting on something
  17. Eisenstein Russian film maker who pioneered the use of montage and is considered among the most influential film makers in the history of motion pictures (1898-1948)
  18. unstained not stained
  19. whinstone any of various hard colored rocks
  20. coincidence the property of two things happening at the same time