"zero-cool" meaning in English

{
  "forms": [
    {
      "form": "more zero-cool",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most zero-cool",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "zero-cool (comparative more zero-cool, superlative most zero-cool)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "1965, Corpsman (volume 1, issue 2, page 9)",
          "text": "SINGER DIONNE WARWICK believes her younger sister, Dee Dee, has the makings of a zero-cool singer."
        },
        {
          "ref": "1998, Gus Russo, Live by the Sword, page 242",
          "text": "Investigative journalist Jim Hougan accurately described Bellino as a \"zero-cool, behind-the-scenes figure in the Kennedy organization.\"",
          "type": "quotation"
        },
        {
          "ref": "2023, Stuart Cosgrove, The Complete Soul Trilogy: eBook Bundle",
          "text": "She blazed a trail for new wave and became a zero-cool gay rights activist in an industry still jittery about open declarations of sexuality.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Very cool (trendy, fashionable, pleasing, etc.)"
      ],
      "id": "en-zero-cool-en-adj-yfg5dSs6",
      "raw_glosses": [
        "(dated, informal) Very cool (trendy, fashionable, pleasing, etc.)"
      ],
      "related": [
        {
          "word": "zero chill"
        }
      ],
      "tags": [
        "dated",
        "informal"
      ]
    }
  ],
  "word": "zero-cool"
}

{
  "forms": [
    {
      "form": "more zero-cool",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most zero-cool",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "zero-cool (comparative more zero-cool, superlative most zero-cool)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "zero chill"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English dated terms",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1965, Corpsman (volume 1, issue 2, page 9)",
          "text": "SINGER DIONNE WARWICK believes her younger sister, Dee Dee, has the makings of a zero-cool singer."
        },
        {
          "ref": "1998, Gus Russo, Live by the Sword, page 242",
          "text": "Investigative journalist Jim Hougan accurately described Bellino as a \"zero-cool, behind-the-scenes figure in the Kennedy organization.\"",
          "type": "quotation"
        },
        {
          "ref": "2023, Stuart Cosgrove, The Complete Soul Trilogy: eBook Bundle",
          "text": "She blazed a trail for new wave and became a zero-cool gay rights activist in an industry still jittery about open declarations of sexuality.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Very cool (trendy, fashionable, pleasing, etc.)"
      ],
      "raw_glosses": [
        "(dated, informal) Very cool (trendy, fashionable, pleasing, etc.)"
      ],
      "tags": [
        "dated",
        "informal"
      ]
    }
  ],
  "word": "zero-cool"
}