"underdeliver" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "deliver"
      },
      "expansion": "under- + deliver",
      "name": "prefix"
    }
  ],
  "etymology_text": "From under- + deliver.",
  "forms": [
    {
      "form": "underdelivers",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "underdelivering",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "underdelivered",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "underdelivered",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "underdeliver (third-person singular simple present underdelivers, present participle underdelivering, simple past and past participle underdelivered)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "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 prefixed with under-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2009 March 3, “Promoters fake Howard support”, in Herald Sun:",
          "text": "[…] the result was a warning to all exhibition organisers about the dangers of overpromising and underdelivering when promoting events.",
          "type": "quote"
        },
        {
          "ref": "2022 October 5, “Network News: Private sector's role in a publicly-owned railway”, in RAIL, number 967, page 16:",
          "text": "\"[...] If the economy has tanked... then we don't want to over-promise and under-deliver.\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "To deliver less, or at an inferior level, than promised or expected"
      ],
      "id": "en-underdeliver-en-verb-EqhVJZND",
      "links": [
        [
          "deliver",
          "deliver"
        ]
      ],
      "related": [
        {
          "word": "underdelivery"
        }
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-underdeliver.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a5/LL-Q1860_%28eng%29-Flame%2C_not_lame-underdeliver.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-underdeliver.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a5/LL-Q1860_%28eng%29-Flame%2C_not_lame-underdeliver.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-underdeliver.wav.ogg"
    }
  ],
  "word": "underdeliver"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "deliver"
      },
      "expansion": "under- + deliver",
      "name": "prefix"
    }
  ],
  "etymology_text": "From under- + deliver.",
  "forms": [
    {
      "form": "underdelivers",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "underdelivering",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "underdelivered",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "underdelivered",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "underdeliver (third-person singular simple present underdelivers, present participle underdelivering, simple past and past participle underdelivered)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "underdelivery"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with under-",
        "English terms with quotations",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2009 March 3, “Promoters fake Howard support”, in Herald Sun:",
          "text": "[…] the result was a warning to all exhibition organisers about the dangers of overpromising and underdelivering when promoting events.",
          "type": "quote"
        },
        {
          "ref": "2022 October 5, “Network News: Private sector's role in a publicly-owned railway”, in RAIL, number 967, page 16:",
          "text": "\"[...] If the economy has tanked... then we don't want to over-promise and under-deliver.\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "To deliver less, or at an inferior level, than promised or expected"
      ],
      "links": [
        [
          "deliver",
          "deliver"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-underdeliver.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a5/LL-Q1860_%28eng%29-Flame%2C_not_lame-underdeliver.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-underdeliver.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a5/LL-Q1860_%28eng%29-Flame%2C_not_lame-underdeliver.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-underdeliver.wav.ogg"
    }
  ],
  "word": "underdeliver"
}