A strong will to fight, often used in sports, martial arts, or competitive contexts.
His fighting spirit led the team to victory.
No matter how hard it gets, don't lose your fighting spirit.
根性 refers to willpower, guts, or tenacity, often in enduring hardship, whereas 闘魂 is more about an aggressive, fighting mindset.
Standard kanji spelling.
Irregular kanji usage; 闘魂 is preferred.
Compound of 闘 (fight) and 魂 (spirit). The exact historical derivation is uncertain, but the word is conventionally associated with a combative spirit.