staunch
Definitions
Firm and steadfast in principle, adherence, or loyalty.
Strongly built; substantial and sturdy.
Examples
She is a staunch supporter of animal rights and volunteers at the shelter every weekend.
Despite the criticism from his peers, he remained a staunch defender of the new policy.
The company has been a staunch advocate for environmental sustainability for over two decades.
Synonyms
Antonyms
unreliable disloyal wavering fickle unfaithful vacillating indifferent