"kub siab" meaning in White Hmong

{
  "head_templates": [
    {
      "args": {
        "1": "mww",
        "2": "adj"
      },
      "expansion": "kub siab",
      "name": "head"
    }
  ],
  "lang": "White Hmong",
  "lang_code": "mww",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "White Hmong entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "earnest, determined"
      ],
      "id": "en-kub_siab-mww-adj-UWqGU8f9",
      "links": [
        [
          "earnest",
          "earnest"
        ],
        [
          "determined",
          "determined"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ku˥.ʂiə̯˥/"
    }
  ],
  "word": "kub siab"
}

{
  "head_templates": [
    {
      "args": {
        "1": "mww",
        "2": "adj"
      },
      "expansion": "kub siab",
      "name": "head"
    }
  ],
  "lang": "White Hmong",
  "lang_code": "mww",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "White Hmong adjectives",
        "White Hmong entries with incorrect language header",
        "White Hmong lemmas",
        "White Hmong multiword terms",
        "White Hmong terms with IPA pronunciation"
      ],
      "glosses": [
        "earnest, determined"
      ],
      "links": [
        [
          "earnest",
          "earnest"
        ],
        [
          "determined",
          "determined"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ku˥.ʂiə̯˥/"
    }
  ],
  "word": "kub siab"
}