a. 无约束的, 无忧无虑的, 未解恋爱滋味的, 天真无邪的
英汉词典

fancy-free的短语、例句：

fancy-free adj [usu pred 通常作表语] 1 not in love; not committed to anything 未在恋爱中; 不受束缚. 2 (idm 习语) footloose and fancy-free => footloose (foot1).