impregnability (noun) safety: protection from harm
Sinonime: ball of fire, bullish,
cogent, coming on strong,
commanding,
compelling, constraining,
convincing,
dominant, dynamic, dynamical,
effective,
electric,
elemental, energetic, forcible, gutsy,
mighty,
persuasive,
pithy,
potent, powerful, powerhouse, puissa
Antonime: danger,
exposure,
jeopardy,
vulnerability