"have the blues" meaning in English

{
  "forms": [
    {
      "form": "has the blues",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "having the blues",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "had the blues",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "had the blues",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "have<has,,had> the blues"
      },
      "expansion": "have the blues (third-person singular simple present has the blues, present participle having the blues, simple past and past participle had the blues)",
      "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": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mandarin terms with non-redundant manual transliterations",
          "parents": [
            "Terms with non-redundant manual transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Japanese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Mandarin translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "I've had the blues ever since my sweetheart left.",
          "type": "example"
        }
      ],
      "glosses": [
        "To be depressed; to have low morale; to feel sad."
      ],
      "id": "en-have_the_blues-en-verb-ON5jl4gR",
      "links": [
        [
          "depressed",
          "depressed"
        ],
        [
          "morale",
          "morale"
        ],
        [
          "sad",
          "sad"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, informal) To be depressed; to have low morale; to feel sad."
      ],
      "tags": [
        "idiomatic",
        "informal"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "gǎndào yōushāng",
          "sense": "be depressed",
          "word": "感到憂傷 /感到忧伤"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "be depressed",
          "word": "avoir le cafard"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "be depressed",
          "word": "broyer du noir"
        },
        {
          "alt": "ゆううつである",
          "code": "ja",
          "lang": "Japanese",
          "roman": "yūutsu de aru",
          "sense": "be depressed",
          "word": "憂鬱である"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "toskovátʹ",
          "sense": "be depressed",
          "tags": [
            "imperfective"
          ],
          "word": "тоскова́ть"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "grustítʹ",
          "sense": "be depressed",
          "tags": [
            "imperfective"
          ],
          "word": "грусти́ть"
        }
      ]
    }
  ],
  "word": "have the blues"
}

{
  "forms": [
    {
      "form": "has the blues",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "having the blues",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "had the blues",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "had the blues",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "have<has,,had> the blues"
      },
      "expansion": "have the blues (third-person singular simple present has the blues, present participle having the blues, simple past and past participle had the blues)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English terms with usage examples",
        "English verbs",
        "Entries with translation boxes",
        "Mandarin terms with non-redundant manual transliterations",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with French translations",
        "Terms with Japanese translations",
        "Terms with Mandarin translations",
        "Terms with Russian translations"
      ],
      "examples": [
        {
          "text": "I've had the blues ever since my sweetheart left.",
          "type": "example"
        }
      ],
      "glosses": [
        "To be depressed; to have low morale; to feel sad."
      ],
      "links": [
        [
          "depressed",
          "depressed"
        ],
        [
          "morale",
          "morale"
        ],
        [
          "sad",
          "sad"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, informal) To be depressed; to have low morale; to feel sad."
      ],
      "tags": [
        "idiomatic",
        "informal"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "gǎndào yōushāng",
      "sense": "be depressed",
      "word": "感到憂傷 /感到忧伤"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "be depressed",
      "word": "avoir le cafard"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "be depressed",
      "word": "broyer du noir"
    },
    {
      "alt": "ゆううつである",
      "code": "ja",
      "lang": "Japanese",
      "roman": "yūutsu de aru",
      "sense": "be depressed",
      "word": "憂鬱である"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "toskovátʹ",
      "sense": "be depressed",
      "tags": [
        "imperfective"
      ],
      "word": "тоскова́ть"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "grustítʹ",
      "sense": "be depressed",
      "tags": [
        "imperfective"
      ],
      "word": "грусти́ть"
    }
  ],
  "word": "have the blues"
}