"drumless" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "drum",
        "3": "less"
      },
      "expansion": "drum + -less",
      "name": "suffix"
    }
  ],
  "etymology_text": "drum + -less",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "drumless (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"
        }
      ],
      "examples": [
        {
          "ref": "1948, Edgar MacNaughton, Elementary steam power engineering",
          "text": "These boilers use small tubes and in many cases are drumless.",
          "type": "quotation"
        },
        {
          "ref": "1990, Wayne Jancik, The Billboard Book of One-Hit Wonders, page 262",
          "text": "Ray and his diminished Camino cluster, bass-less and drum-less, nonetheless put on a fine show.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Without a drum."
      ],
      "id": "en-drumless-en-adj-Z3t2140y",
      "links": [
        [
          "drum",
          "drum"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "drumless"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "drum",
        "3": "less"
      },
      "expansion": "drum + -less",
      "name": "suffix"
    }
  ],
  "etymology_text": "drum + -less",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "drumless (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms suffixed with -less",
        "English terms with quotations",
        "English uncomparable adjectives",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1948, Edgar MacNaughton, Elementary steam power engineering",
          "text": "These boilers use small tubes and in many cases are drumless.",
          "type": "quotation"
        },
        {
          "ref": "1990, Wayne Jancik, The Billboard Book of One-Hit Wonders, page 262",
          "text": "Ray and his diminished Camino cluster, bass-less and drum-less, nonetheless put on a fine show.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Without a drum."
      ],
      "links": [
        [
          "drum",
          "drum"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "drumless"
}