consisting of or containing string or strings | resistant to cutting or chewing |
forming viscous or glutinous threads | physically toughened |
lean and sinewy | not given to gentleness or sentimentality |
(of meat) full of sinews; especially impossible to chew | unfortunate or hard to bear |
| substantially made or constructed |
| feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad') |
| violent and lawless |
| very difficult; severely testing stamina or resolution |
| making great mental demands; hard to comprehend or solve or believe |