Improper or immodest. / Coarse or tasteless. / Tactless or undiplomatic.

In an indelicate manner.

Having the quality of being difficult to delete, remove, wash away, blot out, or efface. / (figuratively) Incapable of being canceled, lost, or forgotten. / Incapable of being annulled.

In an indelible manner.

(genetics) Either an insertion or deletion mutation in the genetic code.

plural of indel

The property of being indelible.

Misspelling of indelible.

Quality of being indelible.

plural of indelibility