"on the contrary" meaning in English

{
  "etymology_text": ": on the contrary < → δείτε τις λέξεις on, the και contrary",
  "forms": [
    {
      "form": "on the contrary"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Ιδιωματισμοί (αγγλικά)",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "They used to say he was lucky; however, on the contrary, he had many misfortunes in his life.",
          "translation": "Έλεγαν πως ήταν τυχερός· απεναντίας όμως είχε πολλές ατυχίες στη ζωή του."
        },
        {
          "text": "I didn’t wait for them; on the contrary, I was left with the impression that they had already gone.",
          "translation": "Δεν τους περίμενα· απεναντίας έμεινα με την εντύπωση πως είχαν ήδη φύγει."
        },
        {
          "text": "On the contrary, I think she will come.",
          "translation": "Αντίθετα, νομίζω ότι θα 'ρθει."
        }
      ],
      "glosses": [
        "απεναντίας, αντίθετα, χρησιμοποιείται για να εισάγει μια δήλωση που λέει το αντίθετο από την τελευταία"
      ],
      "id": "el-on_the_contrary-en-phrase-XVmKy5sk",
      "raw_tags": [
        "ιδιωματισμός"
      ]
    }
  ],
  "word": "on the contrary"
}

{
  "etymology_text": ": on the contrary < → δείτε τις λέξεις on, the και contrary",
  "forms": [
    {
      "form": "on the contrary"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "Ιδιωματισμοί (αγγλικά)"
      ],
      "examples": [
        {
          "text": "They used to say he was lucky; however, on the contrary, he had many misfortunes in his life.",
          "translation": "Έλεγαν πως ήταν τυχερός· απεναντίας όμως είχε πολλές ατυχίες στη ζωή του."
        },
        {
          "text": "I didn’t wait for them; on the contrary, I was left with the impression that they had already gone.",
          "translation": "Δεν τους περίμενα· απεναντίας έμεινα με την εντύπωση πως είχαν ήδη φύγει."
        },
        {
          "text": "On the contrary, I think she will come.",
          "translation": "Αντίθετα, νομίζω ότι θα 'ρθει."
        }
      ],
      "glosses": [
        "απεναντίας, αντίθετα, χρησιμοποιείται για να εισάγει μια δήλωση που λέει το αντίθετο από την τελευταία"
      ],
      "raw_tags": [
        "ιδιωματισμός"
      ]
    }
  ],
  "word": "on the contrary"
}