noun, noun which may take the genitive case particle 'no'
A yojijukugo describing a state of being free from personal desires and selfish motives; often used in formal or literary contexts to praise altruistic behavior.
I admire his selfless spirit.
Serve society selflessly.
滅私奉公 means 'selfless devotion to public duty', often with a nuance of sacrificing oneself for the nation or organization, while 無私無欲 is a broader term for personal selflessness.
A yojijukugo composed of 無 (without) + 私 (self) + 無 (without) + 欲 (desire). The exact historical origin is uncertain, but it follows a common four-character pattern for expressing moral ideals.