Staunchly means strongly. People who are staunchly opposed to something usually have very strong feelings about it.
The politician is staunchly opposed to the new law.
The scientist is staunchly opposed to the theory that the Earth is round.
adverb
in a staunch manner
Synonyms:
1
He is a staunch supporter of the Palestinians.
2
Alexander staunches the wound with his diadem.
3
Both were staunch friends of the arts.
4
I am a staunch supporter of Taiwan.
5
Enlist the help of a staunch Defender of the Cruft.
6
Leibowitz was a staunch believer in the separation of state and religion.
7
He was a staunch defender of the independence of the European Commission.
8
Donohue is a staunch defender of Mel Gibson's movie.
9
My father was a staunch believer in democracy and the rights of the people.
10
Political power was held by the staunch puritanical fellow believers.