adj.不能擦除的；不能磨灭的；难忘的

The scandal entailed on the government indelible disgrace. 那件丑闻给政府带来了难以洗掉的耻辱。

The markings dry instantly and they are indelible. 这些记号很快就会风干，很难洗掉。

He has made indelible contributions during the entire course of the revolution. 在整个革命过程中，他树立了不可磨灭的功绩。

The experience made an indelible impression on me. 那次经历使我难以忘怀。