"ill feeling" meaning in English

{
  "forms": [
    {
      "form": "ill feelings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "ill feeling (countable and uncountable, plural ill feelings)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2019 December 18, Richard Clinnick, “Railway's 2020 vision”, in Rail, page 3",
          "text": "Then there was May 2018's timetable chaos, when so much was promised but not delivered. This still causes ill-feeling for Northern, TransPennine Express and Govia Thameslink Railway. Social media platforms really highlighted the anger - some just wanted to rant, but the frustration was real... and justified.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A feeling of animosity or resentment."
      ],
      "id": "en-ill_feeling-en-noun-VHsEcNLF",
      "links": [
        [
          "animosity",
          "animosity"
        ],
        [
          "resentment",
          "resentment"
        ]
      ],
      "synonyms": [
        {
          "word": "ill-feeling"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "ill feeling"
}

{
  "forms": [
    {
      "form": "ill feelings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "ill feeling (countable and uncountable, plural ill feelings)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns"
      ],
      "examples": [
        {
          "ref": "2019 December 18, Richard Clinnick, “Railway's 2020 vision”, in Rail, page 3",
          "text": "Then there was May 2018's timetable chaos, when so much was promised but not delivered. This still causes ill-feeling for Northern, TransPennine Express and Govia Thameslink Railway. Social media platforms really highlighted the anger - some just wanted to rant, but the frustration was real... and justified.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A feeling of animosity or resentment."
      ],
      "links": [
        [
          "animosity",
          "animosity"
        ],
        [
          "resentment",
          "resentment"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "ill-feeling"
    }
  ],
  "word": "ill feeling"
}