unattractively
adverb /ˌʌnəˈtræktɪvli/
  /ˌʌnəˈtræktɪvli/
- in a way that is not attractive or pleasant to look at
- She scrunched up her face unattractively.
 
 - to a degree that does not seem good, interesting or pleasant
- an unattractively high income tax rate