непрекло́нный — meaning in English

nepreklonnyy

English meaning

adamant adj Refusing to change one's mind or position; firmly determined.
dour adjective Stern, unfriendly, and serious in manner or expression.
firm noun A business, especially one run as a partnership, such as a law or accounting practice.
grim adj Bleak, gloomy, or discouraging.
implacable adj Unable to be calmed or satisfied; unrelenting in hostility or determination.
inexorable adjective Impossible to stop or change once it's set in motion; unavoidable.
inflexible adj Unable to bend or be physically altered in shape.
intransigent adj Refusing to give any ground in an argument or negotiation; stubborn.
relentless adjective Continuing without pause or weakening; unyielding.
rigid adj Stiff and not easily bent.
stiff adjective Rigid; not easily bent or moved.
uncompromising adj Firm and unwilling to make concessions or change one's position.
unwavering adjective Steady and not shaken; firm and resolute.

непрекло́нный is used for these senses in English:

adamant (said of people and their conviction) Firm; unshakeable; unyielding; determined.
dour Unyielding and obstinate.
firm Fixed (in opinion).
grim Rigid and unrelenting.
implacable Adamant; immovable.
inexorable Unable to be persuaded; relentless; unrelenting. [from mid 16th c.]
intransigent Unwilling to compromise or moderate a position; unreasonable.
relentless Unrelenting or unyielding in severity.

adj Refusing to change one's mind or position; firmly determined.
noun A legendary stone or mineral once believed to be unbreakable, historically linked to diamond or lodestone.