"rainfast" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "rain",
        "3": "fast",
        "gloss2": "fixed firmly",
        "pos2": "adjective, as in fast asleep"
      },
      "expansion": "rain + fast (“fixed firmly”, adjective, as in fast asleep)",
      "name": "compound"
    }
  ],
  "etymology_text": "From rain + fast (“fixed firmly”, adjective, as in fast asleep).",
  "forms": [
    {
      "form": "more rainfast",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most rainfast",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rainfast (comparative more rainfast, superlative most rainfast)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -fast",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "That is not washed off by the rain"
      ],
      "id": "en-rainfast-en-adj-cUwm2KCF",
      "links": [
        [
          "rain",
          "rain"
        ]
      ],
      "raw_glosses": [
        "(of a surface coating or chemical spray) That is not washed off by the rain"
      ],
      "raw_tags": [
        "of a surface coating or chemical spray"
      ],
      "synonyms": [
        {
          "tags": [
            "uncommon"
          ],
          "word": "rain-fast"
        }
      ]
    }
  ],
  "word": "rainfast"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "rain",
        "3": "fast",
        "gloss2": "fixed firmly",
        "pos2": "adjective, as in fast asleep"
      },
      "expansion": "rain + fast (“fixed firmly”, adjective, as in fast asleep)",
      "name": "compound"
    }
  ],
  "etymology_text": "From rain + fast (“fixed firmly”, adjective, as in fast asleep).",
  "forms": [
    {
      "form": "more rainfast",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most rainfast",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rainfast (comparative more rainfast, superlative most rainfast)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms suffixed with -fast",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "That is not washed off by the rain"
      ],
      "links": [
        [
          "rain",
          "rain"
        ]
      ],
      "raw_glosses": [
        "(of a surface coating or chemical spray) That is not washed off by the rain"
      ],
      "raw_tags": [
        "of a surface coating or chemical spray"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "uncommon"
      ],
      "word": "rain-fast"
    }
  ],
  "word": "rainfast"
}