Also means
false, untrue
Usage Note
Incierto covers two senses: something unknown or doubtful (el futuro es incierto — the future is uncertain), and something that is not true (un rumor incierto — an unfounded rumour). The noun form is la incertidumbre (uncertainty). Note that incertidumbre is the standard noun; inciertitud is not used in standard Spanish.
Examples
"El resultado del experimento sigue siendo incierto."
Natural Translation
The outcome of the experiment remains uncertain.

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