uncertainty; indeterminacy; unreliability
Abstract noun used in formal or technical contexts to describe a state of not being definite, reliable, or authentic. Often appears in fields like economics, statistics, and philosophy.
Economic uncertainty is increasing.
This data contains indeterminacy.
An adjective meaning 'uncertain' or 'unreliable'; 不確実性 is the noun form expressing the quality or state.
Also means 'uncertainty', but often used in physics (e.g., Heisenberg's uncertainty principle) or more strictly for 'indeterminacy'.
Compound of 不 (negative prefix), 確実 (certain, reliable), and 性 (-ness, -ity). A Sino-Japanese word formed from kanji components.