a having undesirable or negative qualities
s very intense
s feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')
s (of foodstuffs) not in an edible or usable condition
a feeling or expressing regret or sorrow or a sense of loss over something done or undone
s not capable of being collected
s below average in quality or performance
s nonstandard
s not financially safe or secure
s physically unsound or diseased
s capable of harming
s characterized by wickedness or immorality
s reproduced fraudulently
s not working properly
