Last Updated：2025/11/22

A surreptitious harmfulness, quality of entrapment, or treacherousness; the characteristic of being insidious.

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insidiousness

Source Word

insidiousness

uncountable usually

A surreptitious harmfulness, quality of entrapment, or treacherousness; the characteristic of being insidious.

Japanese Meaning

陰険さ、ずる賢さ / 潜在する危険性や害 / 巧妙に陥れる性質、罠に陥れる特性

The insidiousness of the rumor slowly eroded the community's trust.

そのうわさの陰険さがコミュニティの信頼を徐々に蝕んだ。

Sense（1）

A surreptitious harmfulness, quality of entrapment, or treacherousness; the characteristic of being insidious.

insidiousnesses

（ plural ）