The phrase "a powerful opponent" is correct and usable in written English.
It can be used when referring to someone or something that poses a significant challenge or threat in a competitive context, such as sports, politics, or debates.
Example: "In the upcoming election, she will face a powerful opponent who has a strong following and extensive resources."
Alternatives: "a formidable adversary" or "a strong rival".
The zoologist Richard Owen, a powerful opponent, ridiculed the inclusion of the eccentric Benoît de Maillet; Maillet was removed.
While Murray never looked in any danger of losing, Mayer was a powerful opponent who took advantage of some erratic serving and returning by his opponent.
A powerful opponent of both approaches is Sen. Pastore, A Dem. from R.I., who is chairman of the Subcommittee on Communication of the Sen. Commerce Comm.
Others doubt that Mr. Putin would be ready, during his first months in office, to take on such a powerful opponent, and the team that engineered his meteoric rise.
"Whatever view may or may not be taken of Mr Fayed's behaviour in relation to cash for questions or the opening of the safe deposit box, he was reacting to a remorseless campaign by a powerful opponent".
The hospital is a powerful opponent, Ms. Wallerstein said, but there are legal avenues that remain open, provided the groups can do enough fund-raising to pay their $31,000 in legal bills and keep the cause alive.
Battling with a thigh problem and a more powerful opponent, the Pole sealed victory in a dramatic final game on her eighth match point after two hours and 43 minutes.
At the end of certain levels, the barbarian has to fight a more powerful opponent called a boss.
By harnessing the principles of guerrilla warfare -- among those used in Vietnam, nimble versatility in the face of a more powerful opponent and the willingness to endure a long struggle -- Mr. Binh hopes to transform F.P.T. into a diversified technology company that produces its own software, installs and maintains computer networks and provides Internet access, as well as online programming.
His supporters roundly denounced that trial as a legal farce orchestrated by the Kremlin to eliminate Mr. Khodorkovsky, a potentially powerful opponent of Vladimir V. Putin, who was then Russia's president.
Just as cheap, makeshift bombs, or IEDs, have exacted a bloody toll on Americans in Iraq and Afghanistan -- killing more than 3,000 and wounding more than 31,000, according to the Defense Department -- mines are an indirect but effective tactic for Iran to use against a more powerful opponent.
