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Imperceptible vs Unobservable - What's the difference?

imperceptible | unobservable |

As adjectives the difference between imperceptible and unobservable

is that imperceptible is not perceptible, not detectable, too small in magnitude to be observed while unobservable is that cannot be observed.

As a noun unobservable is

something that cannot be observed.

imperceptible

English

Adjective

(en adjective)
  • Not perceptible, not detectable, too small in magnitude to be observed.
    • We all missed the imperceptible shake of his head as he tried to warn us without being seen.

    unobservable

    English

    Adjective

    (-)
  • That cannot be observed.

    • Noun

    (en noun)
  • Something that cannot be observed.