to be reckoned with

(someone or something) to be reckoned with

A person or thing considered to be especially strong, influential, or difficult to defeat. Most commonly used in the phrase "a force to be reckoned with." Despite the higher age of its star players, they are still a team to be reckoned with. The attorney may look petite and meek, but she's a force to be reckoned with in the courtroom.
See also: reckon

a — to be reckoned with (or to reckon with)

a thing or person of considerable importance or ability that is not to be ignored or underestimated.
2002 New Internationalist Now nearly 80, the ex-Harvard Pro is still full of brio and a force to be reckoned with.
See also: reckon
References in periodicals archive ?
WES YORK is confident Wrexham will be a force to be reckoned with when everything finally gels.
Liverpool have got Real Madrid but the Spanish are no longer a force to be reckoned with despite winning the competition a record nine times.
Plus, there's a defiance and spunk in this devastated girl that make her not merely pitiful, but a power to be reckoned with.
We have to quit feeling sorry for ourselves, pointing blame in every direction, and prove to the world that we're still a force to be reckoned with.
Affluent, and often socially liberal, baby boomers have embraced the four-wheel-drive SUV as a symbol of their ability to defy the conventions of old age, of their independence and "outdoorsiness," making the off-road vehicle a force to be reckoned with on the American blacktop.
Holmes, 30, is now injury-free and thriving after three weeks of warm weather training in South Africa and admitted: 'I am looking to make my mark early this year and let the rest of the world know I am still a force to be reckoned with.
A former Hill staffer, he is on a first-name basis with most Congressional leaders and, due to his capacity to mobilize media and mass attention for his political causes, he is a force to be reckoned with.
His ability to lead with detailed clarity, coupled with his strong leadership qualities and natural instinct for good product and marketing, makes him a force to be reckoned with in the action sports arena.
If you ask him, Quartey is still a force to be reckoned with.
His decision to start Kimmel International is a natural progression in the growth of the company, which is quickly becoming a force to be reckoned with in the entertainment industry.
So there's John Force, a force to be reckoned with in any arena, sitting intently on one side of his motor coach.
Plus, as young as she is, we know Sofia will be a major force to be reckoned with on the women's professional circuit for many years to come.
Both of these product lines will ultimately have worldwide opportunities, as our cost structure will make us a force to be reckoned with.
Murphy will grow this division and make Littlefield Hospitality a force to be reckoned with.