"returnless" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "return",
        "3": "less"
      },
      "expansion": "return + -less",
      "name": "suffix"
    }
  ],
  "etymology_text": "From return + -less.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "returnless (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "85 15",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "76 24",
          "kind": "other",
          "name": "English terms suffixed with -less",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "92 8",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "95 5",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1845, Mrs. F. Beavan, Sketches And Tales Illustrative Of Life In The Backwoods Of New Brunswick:",
          "text": "Seventeen years had rolled on their returnless flight since that night of withering sorrow.",
          "type": "quote"
        },
        {
          "ref": "1857, S. H. Hammond, Wild Northern Scenes:",
          "text": "They would do an immensity of labor on their returnless journey to the ocean.",
          "type": "quote"
        },
        {
          "ref": "1872, William Still, The Underground Railroad:",
          "text": "You must hear the judge's decision, remorselessly giving up the woman with her children born and unborn, into the hands of their claimants--by them to be carried to the slave prison, and thence to be sold to a returnless distance from the remaining but scattered fragments of her once happy family.",
          "type": "quote"
        }
      ],
      "glosses": [
        "from (or due to) which one will not, or cannot, return (of a journey, destination, situation, distance, etc.)"
      ],
      "id": "en-returnless-en-adj-oK7feRwI",
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "ref": "1827, Lydia Sigourney, Poems, Visit to the venerable Charles Thompson, pages 94–95:",
          "text": "—but now false Memory loosed\nHer time-worn cable from the wilder'd mind,\nBlotting the chart whereon it loved to gaze\nMid the dim ocean of returnless years.—",
          "type": "quote"
        },
        {
          "ref": "1895, Mary Baker Eddy, Pulpit and Press:",
          "text": "Pass on, returnless year!",
          "type": "quote"
        }
      ],
      "glosses": [
        "which will not return"
      ],
      "id": "en-returnless-en-adj-lfDsDcdK",
      "raw_glosses": [
        "(of something that is gone) which will not return"
      ],
      "raw_tags": [
        "of something that is gone"
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɹəˈtɜɹnləs/"
    }
  ],
  "word": "returnless"
}

{
  "categories": [
    "English adjectives",
    "English entries with incorrect language header",
    "English lemmas",
    "English terms suffixed with -less",
    "English uncomparable adjectives",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "return",
        "3": "less"
      },
      "expansion": "return + -less",
      "name": "suffix"
    }
  ],
  "etymology_text": "From return + -less.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "returnless (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1845, Mrs. F. Beavan, Sketches And Tales Illustrative Of Life In The Backwoods Of New Brunswick:",
          "text": "Seventeen years had rolled on their returnless flight since that night of withering sorrow.",
          "type": "quote"
        },
        {
          "ref": "1857, S. H. Hammond, Wild Northern Scenes:",
          "text": "They would do an immensity of labor on their returnless journey to the ocean.",
          "type": "quote"
        },
        {
          "ref": "1872, William Still, The Underground Railroad:",
          "text": "You must hear the judge's decision, remorselessly giving up the woman with her children born and unborn, into the hands of their claimants--by them to be carried to the slave prison, and thence to be sold to a returnless distance from the remaining but scattered fragments of her once happy family.",
          "type": "quote"
        }
      ],
      "glosses": [
        "from (or due to) which one will not, or cannot, return (of a journey, destination, situation, distance, etc.)"
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1827, Lydia Sigourney, Poems, Visit to the venerable Charles Thompson, pages 94–95:",
          "text": "—but now false Memory loosed\nHer time-worn cable from the wilder'd mind,\nBlotting the chart whereon it loved to gaze\nMid the dim ocean of returnless years.—",
          "type": "quote"
        },
        {
          "ref": "1895, Mary Baker Eddy, Pulpit and Press:",
          "text": "Pass on, returnless year!",
          "type": "quote"
        }
      ],
      "glosses": [
        "which will not return"
      ],
      "raw_glosses": [
        "(of something that is gone) which will not return"
      ],
      "raw_tags": [
        "of something that is gone"
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɹəˈtɜɹnləs/"
    }
  ],
  "word": "returnless"
}