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Webster 1828 Edition

Unobservable

UNOBSERV'ABLE

,

Adj.

s as z. That is not observable; not discoverable.

Definition 2024

unobservable

unobservable

English

Adjective

unobservable ‎(not comparable)

That cannot be observed.

Noun

unobservable ‎(plural unobservables)

Something that cannot be observed.