1. 闲暇；空余；休闲时间
    Leisure is the time when you are not working and you can relax and do things that you enjoy.

leisure的反义词

    e.g. ...a relaxing way to fill my leisure time.
           我打发空余时间的轻松办法
    e.g. ...one of Britain's most popular leisure activities.
           英国最受欢迎的休闲活动之一

2. 从容不迫；不慌不忙；慢悠悠
    If someone does something at leisure or at their leisure, they enjoy themselves by doing it when they want to, without hurrying.

    e.g. You will be able to stroll at leisure through the gardens...
           您可在花园里闲逛。
    e.g. He could read all the national papers at his leisure.
           他可以悠然阅读所有的全国性报纸。