"impostrous" meaning in English

{
  "forms": [
    {
      "form": "more impostrous",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most impostrous",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "impostrous (comparative more impostrous, superlative most impostrous)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "1846-56, George Grote, A History of Greece\nRhetoric (argues Plato in the dialogue called Gorgias) is no art whatever, but a mere unscientific knack, enslaved to the dominant prejudices, and nothing better than an impostrous parody on the true political art."
        }
      ],
      "glosses": [
        "Characterized by imposture; deceitful."
      ],
      "id": "en-impostrous-en-adj-J1IeL6ko",
      "links": [
        [
          "imposture",
          "imposture"
        ],
        [
          "deceitful",
          "deceitful"
        ]
      ],
      "raw_glosses": [
        "(archaic) Characterized by imposture; deceitful."
      ],
      "tags": [
        "archaic"
      ]
    }
  ],
  "word": "impostrous"
}

{
  "forms": [
    {
      "form": "more impostrous",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most impostrous",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "impostrous (comparative more impostrous, superlative most impostrous)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms with archaic senses",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "1846-56, George Grote, A History of Greece\nRhetoric (argues Plato in the dialogue called Gorgias) is no art whatever, but a mere unscientific knack, enslaved to the dominant prejudices, and nothing better than an impostrous parody on the true political art."
        }
      ],
      "glosses": [
        "Characterized by imposture; deceitful."
      ],
      "links": [
        [
          "imposture",
          "imposture"
        ],
        [
          "deceitful",
          "deceitful"
        ]
      ],
      "raw_glosses": [
        "(archaic) Characterized by imposture; deceitful."
      ],
      "tags": [
        "archaic"
      ]
    }
  ],
  "word": "impostrous"
}