"insidiousness" meaning in English

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        "3": "ness"
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      "expansion": "insidious + -ness",
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  "etymology_text": "From insidious + -ness.",
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      "form": "insidiousnesses",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "ref": "1900, Edith Wharton, chapter 8, in The Touchstone:",
          "text": "This lent a new insidiousness to his temptation, since her contempt would be a refuge from his own.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A surreptitious harmfulness, quality of entrapment, or treacherousness; the characteristic of being insidious."
      ],
      "id": "en-insidiousness-en-noun-mTF4d3Nw",
      "links": [
        [
          "surreptitious",
          "surreptitious"
        ],
        [
          "harmfulness",
          "harmfulness"
        ],
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          "entrapment",
          "entrapment"
        ],
        [
          "treacherousness",
          "treacherousness"
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          "characteristic",
          "characteristic"
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          "insidious",
          "insidious"
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      ],
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        "usually"
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      "translations": [
        {
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "kovarstvo",
          "sense": "the characteristic of being insidious",
          "word": "коварство"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "the characteristic of being insidious",
          "tags": [
            "feminine"
          ],
          "word": "insidia"
        }
      ]
    }
  ],
  "word": "insidiousness"
}

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  ],
  "etymology_text": "From insidious + -ness.",
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    {
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  "lang_code": "en",
  "pos": "noun",
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          "type": "quote"
        }
      ],
      "glosses": [
        "A surreptitious harmfulness, quality of entrapment, or treacherousness; the characteristic of being insidious."
      ],
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        [
          "surreptitious",
          "surreptitious"
        ],
        [
          "harmfulness",
          "harmfulness"
        ],
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          "entrapment",
          "entrapment"
        ],
        [
          "treacherousness",
          "treacherousness"
        ],
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          "characteristic",
          "characteristic"
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          "insidious",
          "insidious"
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  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "kovarstvo",
      "sense": "the characteristic of being insidious",
      "word": "коварство"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "the characteristic of being insidious",
      "tags": [
        "feminine"
      ],
      "word": "insidia"
    }
  ],
  "word": "insidiousness"
}