adjective
supreme
soo-PREEM/suˈpriːm/
Highest in rank or degree.
The towering summit holds the supreme position above the lower peaks.

Etymology
Latin supremus expressed the highest position, building on the idea of being above. That spatial ranking applies to authority and power, and more broadly to the greatest possible quality or degree.
In context
Above the circuit level is the Supreme Court, the highest court in the land
More examples
- She faces the challenge with supreme confidence.
- Patient safety is of supreme importance.
- With a supreme effort, he lifts the fallen beam.
Forms
supreme
supremacy noun — The state of holding the highest power.
supremely adverb — To the highest or greatest possible degree.