Harden (someone's) attitude
Translation of "harden (someone's) attitude" into Russian
harden (someone's) attitude
ожесточить (чьё-то) отношение
The constant challenges hardened her attitude towards the project.
Постоянные трудности ожесточили её отношение к проекту.
Definitions
To make someone's attitude more resolute, unyielding, or less sympathetic, often in response to challenges or adversity.