1 (unsure) for a moment he looked uncertain por un momento pareció no estar seguro
Godwin seemed uncertain, faltering in confidence like a bulb about to fail she seemed uncertain, confused for a minute he looked uncertain, and then recovered his composure
to be uncertain about/of sth no estar seguro de algo she is uncertain about the future/what to do next/how to proceed no está segura sobre el futuro/de qué hacer ahora/de cómo proceder
I am uncertain as to whether she was involved in the accident no estoy seguro si ella estuvo implicada en el accidente
I am uncertain whether to accept no estoy seguro si aceptar she hesitated, uncertain whether to continue
2 (doubtful) [+future, outcome, destiny] incierto the fate of the refugees remains uncertain la suerte de los refugiados sigue siendo incierta or sigue sin conocerse; in no uncertain terms sin dejar lugar a dudas; claramente
I told her in no uncertain terms what she could do with her offer
3 (changeable) [+conditions] inestable; [+weather, temper] variable we live in uncertain times vivimos en unos tiempos muy inestables
increasing costs and uncertain economic conditions have taken their toll on profits the type of situation that existed in 1914, the kind of uncertain conditions that can precipitate a world war We are living in a dangerous and uncertain world that inspires no blind confidence
4 (indecisive) [+voice] indeciso; [+smile] tímido; indeciso With an uncertain smile she backed off
[+step] vacilante 5 (indeterminate) indeterminado a smartly-dressed man of uncertain age un hombre elegantemente vestido de edad indeterminada
a painting of uncertain origin