uppermost
🇺🇸
/ˈʌpərməʊst/
🇬🇧
/ˈʌpəməʊst/
Being the highest or at the top.
The uppermost shelf was out of reach.
Most important or of greatest concern.
Safety should be uppermost in our minds.
In the highest position, facing upwards.
Place the material on a flat surface, with the shiny side uppermost.