"under the radar" meaning in English

{
  "etymology_text": "An allusion to flying an airplane at an altitude too low for radar detection.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase",
        "head": ""
      },
      "expansion": "under the radar",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "under the radar",
      "name": "en-PP"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "fly under the radar"
        },
        {
          "word": "slip under the radar"
        }
      ],
      "examples": [
        {
          "ref": "2004 August 30, Andrea Sachs, “About-Face”, in Time",
          "text": "Institutional change has not happened. But it's done quietly under the radar at lots of places.",
          "type": "quotation"
        },
        {
          "ref": "2022, Liam McIlvanney, The Heretic, page 48",
          "text": "Look, we keep our hand in with Maitland as well as this Partick thing. But we do it under the radar.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Without attracting notice; in an undetected or secretive manner."
      ],
      "id": "en-under_the_radar-en-prep_phrase-SJNzEfUa",
      "links": [
        [
          "notice",
          "notice"
        ],
        [
          "undetected",
          "undetected"
        ],
        [
          "secretive",
          "secretive"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) Without attracting notice; in an undetected or secretive manner."
      ],
      "tags": [
        "idiomatic"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "in an undetected or secretive manner",
          "word": "salaa"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "in an undetected or secretive manner",
          "word": "piilossa"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "in an undetected or secretive manner",
          "word": "katveessa"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "in an undetected or secretive manner",
          "word": "sous les radars"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "in an undetected or secretive manner",
          "word": "észrevétlenül"
        },
        {
          "code": "id",
          "lang": "Indonesian",
          "sense": "in an undetected or secretive manner",
          "word": "diam-diam"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "pod radarom",
          "sense": "in an undetected or secretive manner",
          "word": "под радаром"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "in an undetected or secretive manner",
          "word": "under radarn"
        }
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-under the radar.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/c3/En-au-under_the_radar.ogg/En-au-under_the_radar.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/c/c3/En-au-under_the_radar.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "under the radar"
}

{
  "derived": [
    {
      "word": "fly under the radar"
    },
    {
      "word": "slip under the radar"
    }
  ],
  "etymology_text": "An allusion to flying an airplane at an altitude too low for radar detection.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase",
        "head": ""
      },
      "expansion": "under the radar",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "under the radar",
      "name": "en-PP"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English prepositional phrases",
        "English terms with audio links",
        "English terms with quotations",
        "Requests for review of Icelandic translations"
      ],
      "examples": [
        {
          "ref": "2004 August 30, Andrea Sachs, “About-Face”, in Time",
          "text": "Institutional change has not happened. But it's done quietly under the radar at lots of places.",
          "type": "quotation"
        },
        {
          "ref": "2022, Liam McIlvanney, The Heretic, page 48",
          "text": "Look, we keep our hand in with Maitland as well as this Partick thing. But we do it under the radar.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Without attracting notice; in an undetected or secretive manner."
      ],
      "links": [
        [
          "notice",
          "notice"
        ],
        [
          "undetected",
          "undetected"
        ],
        [
          "secretive",
          "secretive"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) Without attracting notice; in an undetected or secretive manner."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-under the radar.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/c3/En-au-under_the_radar.ogg/En-au-under_the_radar.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/c/c3/En-au-under_the_radar.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "in an undetected or secretive manner",
      "word": "salaa"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "in an undetected or secretive manner",
      "word": "piilossa"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "in an undetected or secretive manner",
      "word": "katveessa"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "in an undetected or secretive manner",
      "word": "sous les radars"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "in an undetected or secretive manner",
      "word": "észrevétlenül"
    },
    {
      "code": "id",
      "lang": "Indonesian",
      "sense": "in an undetected or secretive manner",
      "word": "diam-diam"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "pod radarom",
      "sense": "in an undetected or secretive manner",
      "word": "под радаром"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "in an undetected or secretive manner",
      "word": "under radarn"
    }
  ],
  "word": "under the radar"
}