VariousWords beta
Related Terms:
Definitions:
Adjective
impregnable
inviolable
secure
strong
unassailable
unattackable
Definition: immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"
impregnable
inexpugnable
Definition: incapable of being overcome, challenged or refuted; "an impregnable argument"; "impregnable self-confidence"
Definition: Too strong to be penetrated.
Definition: Capable of being impregnated.