mindmap root((活力)) vigorous further implies showing undepleted or undiminished capacity for activity or freshness or roubustness: still ~ and sharp in her seventieth year. energetic suggests a capacity for intense, sometimes bustling or forced, activity: an ~ wife, mother, and career woman. strenuous suggests what is arduous or challenging and evokes a consistently vigorous response: moved to Alaska in search of the ~ life. lusty implies exuberant energy and capacity for enjoyment: a huge meal to satisfy their ~ appetites. nervous suggests especially the forcibleness and sustained effectiveness resulting from mental vigor: a ~ energy informs his sculptures.