Synonyms of TOUGH

noun - someone who learned to fight in the streets rather than being formally trained in the sport of boxing

noun - an aggressive and violent young criminal

noun - a cruel and brutal fellow

adj - very difficult

adj - physically toughened

adj - substantially made or constructed

adj - violent and lawless

adj - feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')

adj - unfortunate or hard to bear

adj - making great mental demands

Synonyms of TOUGH