Synonyms for 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

adjective not given to gentleness or sentimentality

adjective very difficult; severely testing stamina or resolution

adjective physically toughened

adjective substantially made or constructed

adjective violent and lawless

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

adjective resistant to cutting or chewing

adjective unfortunate or hard to bear

adjective making great mental demands; hard to comprehend or solve or believe