"自信満満" meaning in Japanese

{
  "forms": [
    {
      "form": "自信滿滿",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "soft-redirect",
  "redirects": [
    "自信満々"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese terms read with kun'yomi",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w"
        }
      ],
      "id": "en-自信満満-ja-soft-redirect-47DEQpj8",
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "word": "自信満満"
}

{
  "forms": [
    {
      "form": "自信滿滿",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "soft-redirect",
  "redirects": [
    "自信満々"
  ],
  "senses": [
    {
      "categories": [
        "Japanese terms read with kun'yomi",
        "Japanese terms spelled with 信 read as しん",
        "Japanese terms spelled with 満 read as まん",
        "Japanese terms spelled with 自 read as じ",
        "Japanese terms with non-redundant non-automated sortkeys"
      ],
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "word": "自信満満"
}