nailed-on

adjective

1. slang.
   certain, definite; guaranteed to be successful

Example Sentences

The strength and depth England have, looking ahead 18-19 months to the World Cup, there is only one nailed-on starter and that is Jordan Pickford.

From BBC

Well, Chelsea are back on form after their FA Cup win over Villa - so this is a nailed-on Crystal Palace win.

From BBC

The modelling is not a nailed-on prediction or projection.

From BBC

Just one bad performance, in Joe Joyce's case a horrendous six rounds, can transport you from a nailed-on future world champion to a fighter out of his depth at the top level.

From BBC

TMS commentator Daniel Norcross: "Jamie Smith is a nailed-on certainty to be playing cricket for England in four years."

From BBC