Synonyms for unpierceable

Most common

impenetrable · imperforable

All synonyms

Adjective

Definitions

1. adj. 1

   That cannot be pierced.

Example sentences

• impenetrable The wall appeared to be smooth and impenetrable.

Popularity over time

Use in printed books, per decade from 1850 to 2019.

By length

12 letters

impenetrable⁵, imperforable, impierceable

The small number after each word is its number of syllables (impenetrable⁵ = 5 syllables).