"avant la lettre" meaning in Néerlandais

{
  "categories": [
    {
      "kind": "other",
      "name": "Locutions adjectivales en néerlandais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Néerlandais",
      "orig": "néerlandais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Néerlandais",
  "lang_code": "nl",
  "pos": "adj",
  "pos_title": "Locution adjectivale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en néerlandais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Gallicismes en néerlandais",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Een realist avant la lettre.",
          "translation": "Un réaliste avant la lettre."
        }
      ],
      "glosses": [
        "Avant la lettre."
      ],
      "id": "fr-avant_la_lettre-nl-adj-mB3LSAox",
      "raw_tags": [
        "Gallicisme"
      ]
    }
  ],
  "word": "avant la lettre"
}

{
  "categories": [
    "Locutions adjectivales en néerlandais",
    "néerlandais"
  ],
  "lang": "Néerlandais",
  "lang_code": "nl",
  "pos": "adj",
  "pos_title": "Locution adjectivale",
  "senses": [
    {
      "categories": [
        "Exemples en néerlandais",
        "Gallicismes en néerlandais"
      ],
      "examples": [
        {
          "text": "Een realist avant la lettre.",
          "translation": "Un réaliste avant la lettre."
        }
      ],
      "glosses": [
        "Avant la lettre."
      ],
      "raw_tags": [
        "Gallicisme"
      ]
    }
  ],
  "word": "avant la lettre"
}