threatening, rough, hard, dangerous, hard-hitting
Weak
difficult, hard, laborious, tough
hoodlum, tough, gorilla, goon, hood
Chuck Norris...http://www.chucknorrisfacts.com/
No, those words are not synonymous. Tough means strong and durable, different means not alike.
firm, solid, stiff, tough, durable etc
That's a tough one. Chop down and set on fire :)
strong, vigorous, powerful, muscular, hard, tough, stringy, athletic, sturdy
yes it is, need proof look on this link... http://thesaurus.reference.com/browse/difficult
difficult, trying, hard, taxing, wearing, challenging, tough, exacting
Tough is a word that means strong. Tenacious is another synonym for strong.
You could use fixed, rigid, solid, stiff, or tough as a synonym for unyielding.
hard, strong, sturdy, tough, rugged, determined, resolute, unyielding, unbending, firm, rigid, unwavering