"illusive" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ML.",
        "3": "illūsīvus"
      },
      "expansion": "Medieval Latin illūsīvus",
      "name": "der"
    }
  ],
  "etymology_text": "Borrowed from Medieval Latin illūsīvus.",
  "forms": [
    {
      "form": "more illusive",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most illusive",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "illusive (comparative more illusive, superlative most illusive)",
      "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"
        }
      ],
      "derived": [
        {
          "word": "illusively"
        },
        {
          "word": "illusiveness"
        }
      ],
      "examples": [
        {
          "text": "Testing software completely is an illusive goal."
        }
      ],
      "glosses": [
        "Subject to or pertaining to an illusion, often used in the sense of an unrealistic expectation or an unreachable goal or outcome."
      ],
      "id": "en-illusive-en-adj-u-q~ImcZ",
      "links": [
        [
          "illusion",
          "illusion"
        ]
      ],
      "synonyms": [
        {
          "sense": "pertaining to an illusion",
          "word": "illusory"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɪˈluːsɪv/"
    },
    {
      "homophone": "elusive"
    },
    {
      "audio": "en-us-elusive-illusive.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7e/En-us-elusive-illusive.ogg/En-us-elusive-illusive.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/7e/En-us-elusive-illusive.ogg",
      "tags": [
        "US"
      ],
      "text": "Audio (US)"
    }
  ],
  "word": "illusive"
}

{
  "derived": [
    {
      "word": "illusively"
    },
    {
      "word": "illusiveness"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ML.",
        "3": "illūsīvus"
      },
      "expansion": "Medieval Latin illūsīvus",
      "name": "der"
    }
  ],
  "etymology_text": "Borrowed from Medieval Latin illūsīvus.",
  "forms": [
    {
      "form": "more illusive",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most illusive",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "illusive (comparative more illusive, superlative most illusive)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English 3-syllable words",
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms derived from Medieval Latin",
        "English terms with IPA pronunciation",
        "English terms with audio links",
        "English terms with homophones"
      ],
      "examples": [
        {
          "text": "Testing software completely is an illusive goal."
        }
      ],
      "glosses": [
        "Subject to or pertaining to an illusion, often used in the sense of an unrealistic expectation or an unreachable goal or outcome."
      ],
      "links": [
        [
          "illusion",
          "illusion"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɪˈluːsɪv/"
    },
    {
      "homophone": "elusive"
    },
    {
      "audio": "en-us-elusive-illusive.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7e/En-us-elusive-illusive.ogg/En-us-elusive-illusive.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/7e/En-us-elusive-illusive.ogg",
      "tags": [
        "US"
      ],
      "text": "Audio (US)"
    }
  ],
  "synonyms": [
    {
      "sense": "pertaining to an illusion",
      "word": "illusory"
    }
  ],
  "word": "illusive"
}