肯干 (kěn gàn) is an adjective meaning 'willing to work hard' or 'eager to take on tasks.' It combines 肯 (kěn), meaning 'to be willing' or 'to consent,' and 干 (gàn), meaning 'to do' or 'to work.' Together, they express a positive, proactive attitude toward labor—emphasizing readiness, initiative, and diligence rather than just ability or skill.

This term is commonly used in workplace, educational, or family contexts to praise someone’s strong work ethic. It often appears in evaluations, recommendations, or casual encouragement (e.g., when describing an employee, student, or young family member). While not formal or literary, it carries warm, appreciative connotations and is widely understood across age groups and regions in Mandarin-speaking communities.