LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

impervius

impervius (feminine impervia, neuter impervium)
Classical[ɪmˈpɛr.wi.ʊs]Ecclesiastical[imˈpɛr.vi.us]

Meaning

  1. adjectiveimpassable
  2. adjectiveimpervious

Declension

singular
formmasculinefeminineneuter
nominativeimperviusimperviaimpervium
genitiveimperviīimperviaeimperviī
dativeimperviōimperviaeimperviō
accusativeimperviumimperviamimpervium
ablativeimperviōimperviāimperviō
vocativeimpervieimperviaimpervium
plural
formmasculinefeminineneuter
nominativeimperviīimperviaeimpervia
genitiveimperviōrumimperviārumimperviōrum
dativeimperviīsimperviīsimperviīs
accusativeimperviōsimperviāsimpervia
ablativeimperviīsimperviīsimperviīs
vocativeimperviīimperviaeimpervia

impervĭus (inp-), a, um, adj. 2. inpervius,
I. that cannot be passed through, impassable, impervious (poet. and in post-Aug. prose; cf.: inaccessus, invius): amnis, Ov. M. 9, 106: iter, Quint. 12, 11, 11; cf. itinera (with interrupta), Tac. A. 3, 31: tellus, inaccessible, Val. Fl. 2, 643.— Transf.: lapis ignibus, Tac. A. 15, 43.

Quick answers

What does impervius mean in Latin?
impervius, a adjective, means “impassable; impervious”.
How do you pronounce impervius?
In classical Latin, [ɪmˈpɛr.wi.ʊs]; in ecclesiastical (church) Latin, [imˈpɛr.vi.us].