partisan spirit; factionalism
Refers to a narrow-minded loyalty to one's own faction or party, often with a negative connotation of prejudice or stubbornness.
彼の意見は党派根性に過ぎない。
His opinion is nothing more than partisan prejudice.
その議論は党派根性が強く、建設的ではなかった。
The discussion was heavily factional and not constructive.
Similar meaning, but 党派根性 carries a stronger nuance of stubborn, ingrained bias.
Refers to factional consciousness or cliquishness, often in organizational contexts; 党派根性 is more about a prejudiced mindset.
Compound of 党派 (tōha, 'faction, party') and 根性 (konjō, 'disposition, spirit'). The exact historical derivation is uncertain, but the term likely emerged in political discourse to criticize narrow partisanship.