The character of Natasha Romanoff has a dark history filled with espionage and other spy antics. She was initially introduced as an antagonist but later joined S.H.I.E.L.D, then the Avengers. Years of indoctrination and experimentation has crafted her into the perfect weapon, and history has proven this time and time again.

RELATED: 5 Ways Deadpool Could Defeat Black Widow In A Fight (& 5 he couldn't) 

As well as being an accomplished ballerina, Black Widow is a mater at all martial arts, numerous weapons, and an expert tactician. Though she might not be the heaviest hitter, she has proven vital in any combat the Avengers have entered into. Though are accomplishments are evident, there are equal opponents in DC Universe that would efficiently dispatch her in conflict.

10 Black Widow Has Yet To Face Someone As Competent As Lady Shiva

Lady Shiva, the most skilled assassin in DC

Lady Shiva is a quintessential assassin, sometimes operating on the right side, if only for herself. She has mastered numerous martial arts forms and is slated to be the most competent fighter in the entire DC universe. Beating the Bat-family on multiple occasions should be proof enough of her capability.

Though Black Widow is used to high-intensity fights with other martial artists, she has yet to face someone as competent as Lady Shiva. In a straight battle, she is sorely outmatched, so hopefully, she brings the Avengers to help her out.

9 Talia Al Ghul Is An Experienced Trained Killing Machine

Talia

Having trained for years as the perfect killing machine, Talia Al Ghul lives up to her namesake. There are few opponents she could not defeat, and many would flee at merely the mention of her name.

RELATED: 10 Things That Make No Sense About Talia Al Ghul In DC Comics

Centuries of training have fashioned Talia into a weapon only comparable to her father. Though Black Widow would give it her all, Talia's experience would ultimately deal her the winning blow. Perhaps she will have Widow resurrected for round two?

8 Deathstroke Crafts Unique Strategies For Each Of His Enemies

deathstroke ft3

Slade Wilson, otherwise known as the terminator for good reasons, is an assassin and mercenary who always gets the job done. Though he is usually seen with a sword, he is actually proficient with almost any weapon, not that he needs anything to come out victorious.

Wilson single-handedly took down most of the Justice League, having crafted unique strategies for each and every member. Escape would be the only option for Black Widow, perhaps to return with a few other highly trained agents.

7 Vandal Savage Could Counter Her Moves With Ease

Vandal Savage

Though his origins and power sets have altered since his first appearance, Vandal Savage has always been an ageless villain with excellent proficiency. The centuries he has spent alive have allowed him to master a vast amount of combat techniques. All that spare time has crafted him into not only a great warrior, but one who understands the complexities of the world.

RELATED: 5 Reasons Vandal Savage Is DC's Most Dangerous Immortal (& 5 It's Ra's Al Ghul)

Savage's experience is his winning attribute. Since he has been exposed to thousands of combat techniques, nothing can take him by surprise. He would know Natasha's attacks before she even made them, and with it, be able to counter them with ease.

6 Cheetah's Attacks Leave No Room For Mistakes

Cheetah. Dr. Barbara Ann Minerva

Though her backstory has changed, Barbara Minerva has had a strenuous relationship with Wonder Woman over the years, and has been both friend and foe on numerous occasions. She has always been knowledgeable, though her true calling is the unbridled rage of the Cheetah's curse. She possesses increased strength, durability, and agility comparable to her namesake.

Though Cheetah may not have had the temperament and training of a martial artist, her furious claws make her a huge problem to deal with. Though Black Widow could land a few careful blows, Cheetah's fierce attacks would not leave any room for mistakes. One slash from her claws and it's all over.

5 Catwoman Has Numerous Combat Styles In Her Arsenal

Catwoman Loves Batman

Selina Kyle has been a cat burglar, anti-hero, love of Batman, and a member of the Legion of Doom. Kyle did not have the same training many others did. Nonetheless, she has picked up a few combat styles exceptionally quickly.

RELATED: Batman and Catwoman: 10 Things You Didn't Know About Their Iconic Relationship

Though Widow received traditional training, Selina's street smarts and resourcefulness have turned her into a fiercely worthy opponent. Through the use of her retractable claws and whip, Catwoman would keep widow at bay until the final attack. What's the matter Romanoff, cat got your tongue?

4 Cheshire's Poisons Cannot Be Easily Outsmarted

Chesire

Black Canary once referred to Chesire as the "Second most deadly assassin in the world," and she sure lives up to this statement. Dipping her fingernails and weapons in various deadly potions, she only has to land one blow to finish her opponents for good.

Though Black Widow is no stranger to similarly trained professionals, Cheshire has proven herself as the one to beat. Acting as the enforcer for numerous shady organizations, she is the one people call to get the job done.

3 Deadshot's Weapon Mastery Gives Him The Edge

Widely accepted as the best marksman in the Dc universe, Deadshot has fired more bullets than most people have had hot meals. His accuracy is second to none, and can even shoot with precision while blindfolded.

RELATED: 5 Reasons Why Deathstroke is Deadlier Than Deadshot (& 5 Why He Isn't)

Though Widow is capable with most weapons, she is nothing when compared to the master. Before she could even pull out a pistol, Deadshot would have her down and dusted. Even without guns, he is still a highly-skilled martial artist.

2 Kobra's Cultists Will Wear Her Down Before He Delivers The Final Blow

An image of the Cult of Kobra from DC Comics

Jeffrey Franklin Burr is an international terrorist who led the cult of Kobra with an iron fist. His own Lazarus pits extended his life and helped heal any injuries he received in battle. His mastery of martial arts put him at odds with Batman and the Justice League on multiple occasions.

Though his own skill as a fighter is admirable, Kobra would use wave after wave of cultists to wear Widow down. Then finally, he would deliver the killing blow himself. He knows better than to risk his own life until he understands his opponent's capabilities fully.

1 Bronze Tiger Could Knock Her Out With One Kick

Bronze Tiger answers to very few, as one of the most skilled fighters in the Dc Universe, even Shiva acknowledges his capabilities. Along with others of his caliber, he is a member of the League of Assasins, though often works to his own motives if it pleases him.

He has knocked out numerous heroes with one kick, including Batman himself. Black Widow is an excellent fighter with years of experience under her belt, however, against such an opponent, she stands little chance. He has more recorded wins than losses, and those victories are against the likes of Deathstroke, Batman, and Vixen.

NEXT: 5 Marvel Heroes Bronze Tiger Could Defeat (& 5 That Would Defeat Him)