Difference between Stubborn and Pertinacious

STUBBORN vs PERTINACIOUS: ADJECTIVE

Tenaciously unwilling or marked by tenacious unwillingness to yield
Not responding to treatment
Persisting in a reactionary stand
Refusing to change one's mind or course of action despite pressure to do so; unyielding or resolute. : obstinate.
Characterized by a refusal to change one's mind or course of action; dogged or persistent.
Difficult to treat or deal with; resistant to treatment or effort.
Firm as a stub or stump; stiff; unbending; unyielding; persistent; hence, unreasonably obstinate in will or opinion; not yielding to reason or persuasion; refractory; harsh; -- said of persons and things
Refusing to move or to change one's opinion; obstinate; firmly resisting.
Difficult to treat or deal with

Stubbornly unyielding
Holding tenaciously or stubbornly to a purpose, opinion, or course of action.
Extremely persistent or unyielding.
Holding or adhering to any opinion, purpose, or design, with obstinacy; perversely persistent; obstinate
Resolute; persevering; constant; steady.
Holding tenaciously to an opinion or purpose.
Stubbornly resolute or tenacious.

To make stubborn; render stiff, unyielding, enduring, or the like.
Sturdy; stout; strong.
Fixed or set in opinion or purpose; obstinately determined; inflexibly resolute; not to be moved by persuasion; unyielding.
Synonyms and Refractory, Intractable, etc. (see obstinate); wilful, headstrong, unruly, inflexible, obdurate, ungovernable, indocile, mulish.
Harsh; rough; rude; coarse in texture or quality.
Difficult of treatment or management; hard to deal with or handle; not easily manipulated; refractory; tough; unyielding; stiff.
Persistently pursued or practised; obstinately maintained; not readily abandoned or relinquished.
Persistently obdurate; obtuse to reason or right; obstinately perverse.

Synonyms Unyielding, dogged: the word is rarely used now except in condemnation. See obstinate.
Unyielding; persistent; obstinate; especially, resolute, as in holding or adhering to an opinion, purpose, design, course of action, etc.

Bolshy, Hard, Stroppy, Pertinacious, Dogged, Dour, Intractable, Hardheaded, Cantankerous, Bullheaded, Pigheaded, Unyielding, Mulish, Tenacious, Obstinate

Unremitting, Irrepressible, Unswerving, Impudent, Sedulous, Indefatigable, Implacable, Mulish, Obstinate, Bulldog, Dogged, Dour, Tenacious, Stubborn, Unyielding

Bolshy, Hard, Stroppy, Pertinacious, Dogged, Dour, Intractable, Hardheaded, Cantankerous, Bullheaded, Pigheaded, Unyielding, Mulish, Tenacious, Obstinate

Unremitting, Irrepressible, Unswerving, Impudent, Sedulous, Indefatigable, Implacable, Mulish, Obstinate, Bulldog, Dogged, Dour, Tenacious, Stubborn, Unyielding

Why do you want to be so stubborn?
It reduces stubborn dark spots, revealing spotless skin.
It works on even the most stubborn calluses.
Sterren was stubborn enough to wait for him.
Creative, funny, unapologetically myself, realist, and sometimes stubborn.
Moses taught the Israelites not to be stubborn.
Ketoconazole commonly used for stubborn dandruff, psoriasis, etc.
My Dad is a very stubborn man and my Mam, although not quite as stubborn, is certainly more animated.
Kids can be stubborn just to be stubborn.
We introduce nondeterministic stubborn sets, stubborn sets which preserve strong cyclic plans.

Time heals defects, and the pertinacious possessor finds his right to hold and convey secured by circumstances, and protected by judicial tribunals.
To move far away from our pertinacious parents, To come home to a flawless family of our own.
Pencarrow Racing has retained all of Pertinacious' foals including the three-year-old filly trained by Andrew Scott that has recently been named Persuasive.
Church, he is not pertinacious, and hence not guilty of heresy or infidelity.
Sir James Lucas Yeo again had the pertinacious Lieutenant that he unfortunatelysent me.
Generic medicines distend pertinacious access to therapies about driving competition in the market.
Out of the perfect, masking blankness had grown a pertinacious expression.
The images revive, curiously pertinacious, with dim lapses and gulfs.
WHAT DICTIONARIES DOES THE WORD PERTINACIOUS EXIST IN?