Difference between Tough and Sinewy

TOUGH vs SINEWY: NOUN

An aggressive and violent young criminal
Someone who learned to fight in the streets rather than being formally trained in the sport of boxing
A cruel and brutal fellow
A person who obtains things by force; a thug or bully.
A rough; a bully; an incorrigibly vicious fellow; a bad character.
A person who is tough{7}; a ruffian; a thug.
A violent or rowdy person; a hoodlum or thug.

Not easily separated; viscous; clammy; tenacious.
Not easily broken; able to endure hardship; firm; strong; -- of objects and people.
Having the quality of flexibility without brittleness; yielding to force without breaking; capable of resisting great strain.
Stiff; rigid; not flexible; stubborn.
Tough to cut or chew
Not given to gentleness or sentimentality
Violent and lawless
Fine; great.
Unfortunate; too bad.
Difficult to deal with; demanding or troubling.
Difficult to endure; severe; harsh.
Inclined to violent or disruptive behavior; rowdy or rough.
Aggressive; pugnacious.
Feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')
Strong-minded; resolute.
Physically hardy; rugged.
Hard to cut or chew.
Able to withstand great strain without tearing or breaking; strong and resilient.
Unfortunate or hard to bear
Very difficult; severely testing stamina or resolution
Substantially made or constructed
Trying or unpleasant.
Making great mental demands; hard to comprehend or solve or believe
Undergoing plastic deformation before breaking.
Difficult or demanding.
Physically toughened
Difficult to do, perform, or accomplish.
Prone to aggressive or violent behavior; rowdyish; -- of people, or groups.
To make it a matter of difficulty; to make it a hard matter.
Strong and resilient; sturdy.
Severe; violent.
Rugged or physically hardy.
Stubborn.
Harsh or severe.
Rowdy or rough.
Difficult to cut or chew.

Having or showing nervous strength.
Tough; having strong sinews.
Well braced with, or as if with, sinews; nervous; vigorous; strong; firm; tough.
Pertaining to, consisting of, or resembling, a sinew or sinews.
Strong and vigorous.
Lean and muscular. : muscular.
Stringy and tough.
Consisting or full of sinews, as.
(of a person) possessing physical strength and weight; rugged and powerful
Consisting of tendons or resembling a tendon
(of meat) full of sinews; especially impossible to chew

Severe; violent: as, a tough rebuke or tirade; a tough storm.
Hard to manage or accomplish; difficult; trying; requiring great or continued effort.
Not easily influenced; unyielding; stubborn; hardened; incorrigible.
Not easily separated; tenacious; stiff; ropy; viscous: as, a tough clay; tough phlegm.
Firm; strong; able to endure hardship, hard work, or ill usage; hardy; not easily broken or impaired.
Having the property of flexibility without brittleness; yielding to a bending force without breaking; also, hard to cut or sever, as with a cutting-instrument: as, tough meat.
Resistant to cutting or chewing
Very difficult
Making great mental demands
(idiom) (tough it out) To get through despite hardship; endure.
(idiom) (that's tough) Used to indicate recalcitrance or noncompliance with a complaint or demand.

Of the nature of a sinew; resembling a sinew; forming a sinew; tendinous: as, sinewy fibers; a sinewy muscle, in which the tendinous part is conspicuous.
Especially impossible to chew
(of meat) full of sinews
Having strong sinews; hence, muscular; strong; brawny; robust.
Pertaining to or due to physical strength; hence, stout, strong, or vigorous in any way.
Rugged and powerful

Unsentimental, Violent, Calloused, Sturdy, Pugnacious, Hardened, Rowdy, Bully, Rugged, Uncomfortable, Toughened, Toughie, Bad, Hard, Difficult

Willowy, Beefy, Taut, Rangy, Supple, Lanky, Muscly, Muscular, Lithe, Wiry, Unchewable, Tendinous, Tough, Fibrous, Stringy

Gristly, Unsentimental, Violent, Calloused, Sturdy, Pugnacious, Hardened, Rowdy, Bully, Rugged, Uncomfortable, Toughened, Bad, Hard, Difficult

Willowy, Beefy, Taut, Rangy, Supple, Lanky, Muscly, Muscular, Lithe, Wiry, Unchewable, Tendinous, Tough, Fibrous, Stringy

Might be tough for a small order though.
This must be a tough time for you.
Diplomacy, especially under circumstances like these, is tough!
Recently I was going through a tough time.
WIld MUstangs and it must be tough fencing.
The girl was a tough one to find.
Probably tough to get a five star review and also tough to get a three star review.
Residue might be tough to get out, so you may have to hand scrub with a tough sponge.
It was tough, made you tough, cause you knew what to expect.
Going gets tough, the tough call the Iron Marines by purchasing this item you!