"odourless" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "odour",
        "3": "less"
      },
      "expansion": "odour + -less",
      "name": "suffix"
    }
  ],
  "etymology_text": "From odour + -less.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "odourless (not comparable)",
      "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": "English terms suffixed with -less",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Smell",
          "orig": "en:Smell",
          "parents": [
            "Senses",
            "Perception",
            "Body",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "They were taken unawares and overcome when the room filled with a lethal, odourless gas.",
          "type": "example"
        },
        {
          "ref": "1958, Anthony Burgess, The Enemy in the Blanket (The Malayan Trilogy), published 1972, page 357:",
          "text": "Smiling, young, muscular, paunchless, probably odourless, he went.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Having no odour."
      ],
      "id": "en-odourless-en-adj-MO8dkNbH",
      "links": [
        [
          "odour",
          "odour"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "US"
          ],
          "word": "odorless"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əʊdələs/"
    }
  ],
  "word": "odourless"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "odour",
        "3": "less"
      },
      "expansion": "odour + -less",
      "name": "suffix"
    }
  ],
  "etymology_text": "From odour + -less.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "odourless (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "British English forms",
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms suffixed with -less",
        "English terms with quotations",
        "English terms with usage examples",
        "English uncomparable adjectives",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Smell"
      ],
      "examples": [
        {
          "text": "They were taken unawares and overcome when the room filled with a lethal, odourless gas.",
          "type": "example"
        },
        {
          "ref": "1958, Anthony Burgess, The Enemy in the Blanket (The Malayan Trilogy), published 1972, page 357:",
          "text": "Smiling, young, muscular, paunchless, probably odourless, he went.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Having no odour."
      ],
      "links": [
        [
          "odour",
          "odour"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əʊdələs/"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "US"
      ],
      "word": "odorless"
    }
  ],
  "word": "odourless"
}