"plainish" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "plain",
        "3": "ish"
      },
      "expansion": "plain + -ish",
      "name": "suffix"
    }
  ],
  "etymology_text": "From plain + -ish.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "plainish (not comparable)",
      "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 -ish",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1975, Hubert Fenwick, The chateaux of France:",
          "text": "Here is the ducal palace, a plainish structure seven storeys high with dungeons below, and this now serves as the Museum of Popular Art.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Somewhat plain in appearance."
      ],
      "id": "en-plainish-en-adj-1P6-OtzE",
      "links": [
        [
          "plain",
          "plain"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "plainish"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "plain",
        "3": "ish"
      },
      "expansion": "plain + -ish",
      "name": "suffix"
    }
  ],
  "etymology_text": "From plain + -ish.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "plainish (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms suffixed with -ish",
        "English terms with quotations",
        "English uncomparable adjectives",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1975, Hubert Fenwick, The chateaux of France:",
          "text": "Here is the ducal palace, a plainish structure seven storeys high with dungeons below, and this now serves as the Museum of Popular Art.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Somewhat plain in appearance."
      ],
      "links": [
        [
          "plain",
          "plain"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "plainish"
}