The global economy is promoting an increasingly ambiguous and competitive environment for companies operating across borders. To support the demand for this globalization, multinational companies need competent expatriates for the success of their operations abroad. These international assignments can provide unique opportunities for growth and development, but they also require expatriates to adapt effectively to new environments. The purpose of this study was to describe how expatriate humble behavior operates in corporate international assignments. Semi structured interviews were conducted with 19 managers, being senior assigned expatriates (AEs) and Human Resources/Global Mobility experts. The questions that made up the interview script were divided into the following categories: 1. Expressed humble behaviors, 2. Relevance of humble behavior, 3. Context in which expatriate humble behaviors are more required in international assignments; and 4. Outcomes: humility infusing expatriate adaptation. The analysis process was based on content analysis, to extract expatriate and HR perceptions about the categories covered. Results suggest that humility is important to all, but lack of humility in Global Mobility can be a road blocker. Humility builds connections, trust and reliable and long-term relationships, and highly contributes to expatriates´ adaptation on international assignments. The study also shows that humility needs favorable conditions to flourish, and it may be associated with weakness, in certain contexts, such as those where the leader is seen as a hero, or in cultures that value competition, individualism, high power distance, confrontation and in moments that require agency. The research highlights that cultural humility is fundamental to assigned expatriates, who lead with a global mindset. Therefore, organizations should improve the selection procedure, emphasizing the contribution of a humble behavior to candidates for an international assignment, and offer Cross-cultural training programs that include the behavioral aspect, with a focus on the three dimensions of expressed humility: self-awareness; appreciation of others and teachability.