1. 不合格的：Indicator指示器 | Ineligible不合格的 | Infrared红外

2. 无资格的;不适当的：indefatigable#不疲倦的 | ineligible#无资格的;不适当的 | inept#不适宜的

3. 没有资格的：eligible 有资格当选的;合适的 | ineligible 没有资格的 | negligible 微不足道的

4. 无被选任资格的：ineligibility 不适任 | ineligible 无被选任资格的 | ineligible 无被选任资格的人

1. 无资格的;不合格的
    If you are ineligible for something, you are not qualified for it or entitled to it.

    e.g. ...a ruling that he would be ineligible for any social security benefits...
           他无资格申领任何社会保险福利的裁定
    e.g. They were ineligible to remain in the USA.
           他们不符合条件，不能继续留在美国。

1. not eligible

    e.g. ineligible to vote
           ineligible for retirement benefits

2. prohibited by official rules

    e.g. an ineligible pass receiver