unusable
🇺🇸
/ˌʌnˈjuːzəbl/
🇬🇧
/ˌʌnˈjuːzəbl/
Something that is in very bad condition or of very poor quality and cannot be used.
The old bicycle was so damaged that it became unusable.
那辆旧自行车损坏得如此严重,以至于变得无法使用。