heavyweight

Etymology

heavy + weight

noun

1. A very large, heavy, or impressive person.
   an intellectual heavyweight
   When Time magazine named Ann Coulter among its 100 "most influential people" last week, alongside such heavyweights as Ariel Sharon, Bill Clinton, Nelson Mandela, Kim Jong Il and the Dalai Lama, the choice produced guffaws online. 2005-04-19, Eric Boehlert, “Time hearts Ann Coulter”, in Salon, archived from the original on 2006-05-17
   Allen Gregory DeLongpre: Who's he? Patrick: He's only the most popular kid in school. Allen Gregory: Ah, the two heavyweights finally meet. Sure you're tired of all the buzz. Allen Gregory DeLongpre. 2011 Allen Gregory, "Pilot" (season 1, episode 1)
2. (uncountable, boxing">boxing) The professional boxing">boxing weight class for boxers weighing more than 190 pounds; a boxer in that division.
3. (uncountable, by extension) A similar division and contestant in other sports.

adj

1. Of the heavyweight boxing (or similar) division.
2. Being relatively heavy.
3. Being a leader in one's field.
4. Important or impressive.
   The Olympics, the weather and a comparative lack of heavyweight clashes so far this season have been cited as reasons for the drop in viewers. 24 October 2016, Owen Gibson, “Is the unthinkable happening – are people finally switching the football off?”, in The Guardian, London
   In recent years, much has been made of the lack of new heavyweight male star power in mainstream Hollywood. Talented performers may be everywhere, but Movie Stars, capital M, capital S, are something else. February 9 2021, Christina Newland, “Is Tom Hanks part of a dying breed of genuine movie stars?”, in BBC