unyielding
US /ʌnˈjiːl.dɪŋ/
UK /ʌnˈjiːl.dɪŋ/

1.
unbeugsam, hart, fest
not giving way to pressure; hard or solid
:
•
The ancient oak tree stood unyielding against the strong winds.
Die alte Eiche stand unbeugsam gegen die starken Winde.
•
The rock formation was unyielding, resisting all attempts at erosion.
Die Felsformation war unbeugsam und widerstand allen Erosionsversuchen.
2.
unbeugsam, unerschütterlich, hartnäckig
not giving in to argument, plea, or persuasion; resolute
:
•
Despite our pleas, she remained unyielding in her decision.
Trotz unserer Bitten blieb sie unbeugsam in ihrer Entscheidung.
•
His unyielding determination led him to achieve his goals.
Seine unbeugsame Entschlossenheit führte ihn zum Erreichen seiner Ziele.