1. firm, unwavering support or endorsement that remains constant despite challenges or difficulties
The organization received steadfast backing from its founding members throughout the crisis.
A organização recebeu apoio inabalável de seus membros fundadores durante toda a crise.
2. consistent financial or political support that does not waver
The candidate appreciated the steadfast backing of her core supporters.
A candidata apreciava o apoio inabalável de seus apoiadores principais.