"낙천주의자" meaning in Korean

{
  "etymology_templates": [
    {
      "args": {
        "1": "樂天主義",
        "2": "optimism",
        "3": "者",
        "4": "person",
        "suffix": "y"
      },
      "expansion": "Sino-Korean word from 樂天主義者, from 樂天主義 (“optimism”) + 者 (“person”)",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 樂天主義者, from 樂天主義 (“optimism”) + 者 (“person”).",
  "forms": [
    {
      "form": "nakcheonjuuija",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "樂天主義者",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "樂天主義者"
      },
      "expansion": "낙천주의자 • (nakcheonjuuija) (hanja 樂天主義者)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Korean entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms suffixed with -자 (者)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Korean words",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "optimist"
      ],
      "id": "en-낙천주의자-ko-noun-G9j3YCJm",
      "links": [
        [
          "optimist",
          "optimist"
        ]
      ],
      "synonyms": [
        {
          "alt": "樂觀主義者",
          "word": "낙관주의자"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[na̠k̚t͡ɕʰʌ̹ɲd͡ʑuɰid͡ʑa̠]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "ipa": "[na̠k̚t͡ɕʰʌ̹ɲd͡ʑuid͡ʑa̠]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "낙천주의자"
    },
    {
      "hangeul": "낙천주이자"
    }
  ],
  "word": "낙천주의자"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "樂天主義",
        "2": "optimism",
        "3": "者",
        "4": "person",
        "suffix": "y"
      },
      "expansion": "Sino-Korean word from 樂天主義者, from 樂天主義 (“optimism”) + 者 (“person”)",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 樂天主義者, from 樂天主義 (“optimism”) + 者 (“person”).",
  "forms": [
    {
      "form": "nakcheonjuuija",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "樂天主義者",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "樂天主義者"
      },
      "expansion": "낙천주의자 • (nakcheonjuuija) (hanja 樂天主義者)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Korean entries with incorrect language header",
        "Korean lemmas",
        "Korean nouns",
        "Korean terms suffixed with -자 (者)",
        "Korean terms with IPA pronunciation",
        "Korean terms with redundant script codes",
        "Korean terms with redundant transliterations",
        "Pages with 1 entry",
        "Sino-Korean words"
      ],
      "glosses": [
        "optimist"
      ],
      "links": [
        [
          "optimist",
          "optimist"
        ]
      ],
      "synonyms": [
        {
          "alt": "樂觀主義者",
          "word": "낙관주의자"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[na̠k̚t͡ɕʰʌ̹ɲd͡ʑuɰid͡ʑa̠]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "ipa": "[na̠k̚t͡ɕʰʌ̹ɲd͡ʑuid͡ʑa̠]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "낙천주의자"
    },
    {
      "hangeul": "낙천주이자"
    }
  ],
  "word": "낙천주의자"
}