Meaning of zì sī:
zì sī
自私
Adjective
selfish
Tā biǎoxiàn de hěn zìsī, zhǐ kǎolǜ zìjǐ de lìyì.
他表现得很自私,只考虑自己的利益。
He acted very selfishly, only considering his own interests.
Noun
selfishness
Tā de xíngwéi tài zì sī le.
他的行为太自私了。
His behavior is too selfish.