indoeuropean language (noun) Romance language: languages derived from Latin
Sinonime: closed to, hermetic, immune, impassable,
impassive,
impenetrable, impermeable, imperviable, inaccessible, invulnerable, resistant, sealed,
tight, unaffected, unapproachable, unmoved, unpierceable, unreceptive, watertight
Antonime: exposed,
open, penetrable,
responsive,
sensitive, vulnerable