Steadfast

adj.resilient, kindwarm

What it means

Firmly loyal or committed through pressure, delay, or hardship.

Reach for it when praising constancy when a person had real reasons to waver

Her steadfast support kept the youth center open through two failed grant rounds.

warm
faithful
when fidelity to a promise, relationship, or belief is primary
not when It can carry religious or marital meanings absent from steadfast.
warm
loyal
when allegiance to a person, group, or cause is central
not when Loyalty can be passive, while steadfast often shows through prolonged action.
professional
committed
when dedication is clear but flexibility remains possible
not when Commitment alone does not prove the tested endurance of steadfastness.
professional
dependable
when others can count on repeated follow-through
not when Dependability may concern routine performance without hardship or commitment.
formal
resolute
when determination toward a chosen course matters
not when Resolute describes decision and will more than loyalty to others.
formal
staunch
when strong public support survives opposition
not when Its political flavor can make personal appreciation sound combative.
formal
unwavering
when no visible change in belief or support occurred
not when It can imply refusal to reconsider evidence, which steadfast need not.
literary
constant
when affection or support remains unchanged over time
not when Constant can sound static and says little about resistance to pressure.

steadfast friend
A steadfast friend, Radu called every evening of the long recovery.
steadfast support
Steadfast support from local shops kept the food bank stocked.
remain steadfast
The advocates would remain steadfast while accepting improvements to their plan.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.