1. 不漂亮的；难看的；不吸引人的
    Unattractive people and things are unpleasant in appearance.

2. 无吸引力的；不受欢迎的
    If you describe something as unattractive, you mean that people do not like it and do not want to be involved with it.

1. lacking beauty or charm

    e.g. as unattractive as most mining regions

2. lacking power to arouse interest

    e.g. being unemployed is a most unattractive prospect

3. not appealing to the senses

    e.g. untempting food

    Synonym: untempting