Wiktionary
a. Not trembling; staunch, unafraid.
Usage examples of "untrembling".
He looked like a figure of Thor as his untrembling arm rose and fell, driving deeper and deeper the mercy-bearing stake, whilst the blood from the pierced heart welled and spurted up around it.
Was she really rising now, with weak legs and empty contracting stomach and stuttering heart, and moving along the pew to take her position in the center of the aisle, and setting out her reasons, her just causes, in a defiant untrembling voice as she advanced in her cape and headdress, like a bride of Christ, toward the altar, toward the openmouthed vicar who had never before in his long career been interrupted, toward the congregation of twisted necks, and the half-turned white-faced couple?
I found Gabriel Elk bent over the corpse of his son, working with liver-spotted and untrembling hands to turn the boy into an actor.
From her mouth the smoke went up from another, in an untrembling vertical ribbon.
Niphrata rushed forward with swift, unhesitating, dreadful precision straight on the knife outheld by the untrembling ruthless hands of the Priest Zel!