"non compos mentis" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "non",
        "t": "not"
      },
      "expansion": "Latin non (“not”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "compos",
        "t": "in control, having mastery"
      },
      "expansion": "compos (“in control, having mastery”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "mentis",
        "t": "of mind"
      },
      "expansion": "mentis (“of mind”)",
      "name": "m"
    }
  ],
  "etymology_text": "From Latin non (“not”) + compos (“in control, having mastery”) + mentis (“of mind”).",
  "head_templates": [
    {
      "args": {
        "1": "-",
        "head": "non compos mentis"
      },
      "expansion": "non compos mentis (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": "Latin links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Law",
          "orig": "en:Law",
          "parents": [
            "Justice",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Insane; not of sound mind; not in control of oneself."
      ],
      "id": "en-non_compos_mentis-en-adj-nq6Jcm4G",
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "Insane",
          "insane"
        ],
        [
          "sound",
          "sound"
        ],
        [
          "mind",
          "mind"
        ]
      ],
      "qualifier": "but also seeing wider use",
      "raw_glosses": [
        "(law, but also seeing wider use) Insane; not of sound mind; not in control of oneself."
      ],
      "related": [
        {
          "word": "compos mentis"
        },
        {
          "word": "nincompoop"
        }
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "law"
      ]
    }
  ],
  "word": "non compos mentis"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "non",
        "t": "not"
      },
      "expansion": "Latin non (“not”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "compos",
        "t": "in control, having mastery"
      },
      "expansion": "compos (“in control, having mastery”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "mentis",
        "t": "of mind"
      },
      "expansion": "mentis (“of mind”)",
      "name": "m"
    }
  ],
  "etymology_text": "From Latin non (“not”) + compos (“in control, having mastery”) + mentis (“of mind”).",
  "head_templates": [
    {
      "args": {
        "1": "-",
        "head": "non compos mentis"
      },
      "expansion": "non compos mentis (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "compos mentis"
    },
    {
      "word": "nincompoop"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms borrowed from Latin",
        "English terms derived from Latin",
        "English uncomparable adjectives",
        "Latin links with redundant wikilinks",
        "en:Law"
      ],
      "glosses": [
        "Insane; not of sound mind; not in control of oneself."
      ],
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "Insane",
          "insane"
        ],
        [
          "sound",
          "sound"
        ],
        [
          "mind",
          "mind"
        ]
      ],
      "qualifier": "but also seeing wider use",
      "raw_glosses": [
        "(law, but also seeing wider use) Insane; not of sound mind; not in control of oneself."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "law"
      ]
    }
  ],
  "word": "non compos mentis"
}