stealthiness; concealment
Refers to the quality of being stealthy or hidden, often used in contexts like military operations, technology, or abstract discussions of secrecy.
This fighter jet has high stealth capabilities.
The design emphasizes concealment.
Compound of 隠密 (stealth, secrecy) and 性 (nature, quality). The exact historical derivation is uncertain, but the word follows a common pattern for forming abstract nouns.