worldly-wise; skilled at navigating life
Describes a person who is shrewd, practical, and knows how to succeed in society. Often carries a nuance of being savvy about human relationships and life's practicalities.
He is worldly-wise and can get along well in any workplace.
People who are skilled at navigating life know the tricks of human relationships well.
Similar meaning but more colloquial; 処世達者 is slightly more formal and literary.
Refers to the art or skill of getting along in the world, while 処世達者 describes a person who possesses that skill.
Compound of 処世 (shosei, 'conduct in life') and 達者 (tassha, 'skilled, proficient'). The exact historical derivation is uncertain, but the combination yields the meaning of being adept at navigating worldly affairs.