mindmap root((快乐)) glad may convey polite conventional expressions of pleasure: we are so ~ you could come; or it may convey the idea of an actual lifting of spirits, delight, or even elation: a face that makes me ~. happy implies a sense of well-being and complete content: nothing made him so ~ as to be at home with his family. cheerful suggests a strong spontaneous flow of good spirits: broke into a ~ song as he strode along. lighthearted stresses freedom from worry, care, and discontent: went off to school, ~ and gay. joyful usually suggests an emotional reaction to a situation that calls forth rejoicing of happiness or elation: heard the news with a ~ heart. joyous is more likely to apply to something that is by its nature filled with joy or a source of joy: sang song after ~ song.