mettle
Definitions
A person's ability to cope well with difficulties or to face a demanding situation in a spirited and resilient way.
The quality of a person's character, especially their disposition to face challenges with courage and fortitude.
Examples
The young athlete proved his mettle by winning the championship despite his injury.
The difficult crisis tested the mettle of the entire leadership team.
She showed her true mettle when she stood up for her beliefs in the face of intense opposition.
Synonyms
spirit courage grit fortitude resolve determination backbone
Antonyms
cowardice timidity fearfulness spinelessness weakness irresolution pusillanimity