unobservable
観察不可能
empiricism
logical positivism
phenomenology
rationalism
Hidden variable theory
Object of the mind
If a tree falls in a forest
Unobservable chaos
Proxy (statistics), for an unobservable variable
/suto3/google.iconunobservable
image unobservable
define unobservable
wikipedia unobservable
weblio unobservable
kotobank unobservable
jisho unobservable