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unobservable
01
impossible to be seen, detected, or noticed, often due to limitations in perception or available tools
Exemple
The faint signals from deep space were unobservable without advanced equipment.
The virus was unobservable to the naked eye, requiring specialized microscopes for study.
The unobservable movements of tectonic plates cause earthquakes, which are only noticed when they surface.
The changes in his mood were so subtle they were nearly unobservable to his friends.
The subtle changes in the climate are often unobservable in the short term but significant over decades.
