imperceptibility

/ɪmˌpɜrˌsɛpˈtɪbɪləti/
noun
  1. The quality or state of being impossible or extremely difficult to notice or detect.
    • The spy relied on the imperceptibility of his movements to avoid detection.
    • Thanks to the imperceptibility of the changes, no one realized the software had been updated.
    • The imperceptibility of the tiny crack made it a hidden danger.
What does "imperceptibility" mean? | whatsthatwordmean | whatsthatwordmean