certain

adj

1.
definite but not specified or identified
2.
having or feeling no doubt or uncertainty; confident and assured
bestevened doubtless ee steve siccar siccer sicker wis wiss sure
Antonym:
uncertain
3.
established beyond doubt or question; definitely known
Antonym:
uncertain
4.
certain to occur; destined or inevitable
giveth lorn ME drēse witted sure
Antonym:
uncertain
5.
established irrevocably
sealed
6.
reliable in operation or effect
sure
7.
exercising or taking care great enough to bring assurance
sure