undesirably

/ˌʌndɪˈzaɪrəbli/
adverb
  1. In a way that is not wanted or is unpleasant; causing a negative effect.
    • Her comments were undesirably blunt, making everyone uncomfortable.
    • The temperature in the room rose undesirably high during the heatwave.
    • The chemical reaction proceeded undesirably, producing a toxic gas.
Antonyms
What does "undesirably" mean? | whatsthatwordmean | whatsthatwordmean