noun

courage in pain or adversity.

she endured her illness with great fortitude

courage,bravery,strength of mind,strength of character,moral strength,toughness of spirit,firmness of purpose,strong-mindedness,resilience,backbone,spine,mettle,spirit,nerve,pluck,pluckiness,doughtiness,fearlessness,valour,intrepidity,stout-heartedness,endurance,stoicism,steadfastness,patience,long-suffering,forbearance,tenacity,pertinacity,perseverance,resolve,resolution,resoluteness,determination,Dunkirk spirit,guts,grit,spunk