1. (状态)相对的，比较而言的
    You use comparative to show that you are judging something against a previous or different situation. For example, comparative calm is a situation which is calmer than before or calmer than the situation in other places.

comparative的近义词

    e.g. ...those who manage to reach the comparative safety of Fendel...
           达到“芬司匹利”药品相对安全标准的那些药
    e.g. The task was accomplished with comparative ease.
           相对而言，任务完成得比较轻松。

2. (研究)比较的
    A comparative study is a study that involves the comparison of two or more things of the same kind.

    e.g. ...a comparative study of the dietary practices of people from various regions of India.
           对印度各地区的人饮食习惯的比较研究
    e.g. ...a professor of English and comparative literature.
           研究英语和比较文学的教授

3. (形容词或副词)比较级的
    In grammar, the comparative form of an adjective or adverb shows that something has more of a quality than something else has. For example, 'bigger' is the comparative form of 'big', and 'more quickly' is the comparative form of 'quickly'.