Supremely is a related term of principally.
As adverbs the difference between supremely and principally
is that supremely is to the greatest, highest, or utmost degree while principally is in a primary manner; pertaining to the principal of a matter.
supremely
English
Adverb
(
en adverb)
To the greatest, highest, or utmost degree.
- They were supremely confident at the beginning of the season.
principally
English
Adverb
(-)
In a primary manner; pertaining to the principal of a matter.