unattractive
US /ˌʌn.əˈtræk.tɪv/
UK /ˌʌn.əˈtræk.tɪv/

1.
poco atractivo, feo
not pleasing or appealing to the eye or mind
:
•
The old building was quite unattractive.
El edificio antiguo era bastante poco atractivo.
•
His rude behavior made him very unattractive.
Su comportamiento grosero lo hizo muy poco atractivo.