Noun

a cruel and brutal fellow

Noun

an aggressive and violent young criminal

Noun

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

Adjective

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

Adjective

substantially made or constructed

Adjective

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

Adjective

very difficult; severely testing stamina or resolution

Adjective

unfortunate or hard to bear

Adjective

resistant to cutting or chewing

Adjective

physically toughened

Adjective

not given to gentleness or sentimentality

Adjective

violent and lawless