not able to be conquered; impenetrable\n○ adamant\n○ unfettered\n○ impregnable\n○ obstreperous

not able to be conquered; impenetrable\n○ adamant\n○ unfettered\n○ impregnable\n○ obstreperous

not able to be conquered; impenetrable\n○ adamant\n○ unfettered\n○ impregnable\n○ obstreperous

Answer

Brief Ex[LLM SSE On Failure]