/ ʌnˈsɜːtn; NAmE ʌnˈsɜːrtn/ adjective
1.
[usually after noun ] uncertain (about / of sth) feeling doubt about sth; not sure :
They're both uncertain about what to do.
I'm still uncertain of my feelings for him.
OPP certain
2.
likely to change, especially in a negative or unpleasant way :
Our future looks uncertain.
a man of uncertain temper
3.
not definite or decided
SYN unclear :
It is uncertain what his role in the company will be.
4.
not confident
SYN hesitant :
The baby took its first uncertain steps.
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IDIOMS
- in no uncertain terms