🇬🇧 en pl 🇵🇱

deleterious adjective

  /ˌdɛ.ləˈtɪɹ.i.əs/ , /ˌdɛl.ɪˈtɪə̯.ɹi.əs/ , /ˌdɪl.ɪˈtɪə̯.ɹi.əs/
  • (formal) Harmful, often in a subtle or unexpected way.
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