adj very intense
adj not financially safe or secure
adj nonstandard
adj below average in quality or performance
adj not capable of being collected
adj feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')
adj (of foodstuffs) not in an edible or usable condition
adj not working properly
adj reproduced fraudulently
adj having undesirable or negative qualities
adj characterized by wickedness or immorality
adj keenly sorry or regretful
adj capable of harming
adj physically unsound or diseased