a.

1. 達不到的，碰不著的
2. 不可觸摸的；不可批評的

n.

1. （不可接觸的）賤民（原指印度最低層階級）

adj.

1. not able to be touched or affected.
2. unable to be matched or rivalled.
3. of or belonging to the lowest-caste Hindu group or the people outside the caste system.

n.