Donald Trump isn't shy about labeling people losers — belittling everyone from his fellow GOP presidential candidates to Rosie O'Donnell and Arizona Sen. John McCain.

But if he doesn't capture his party's nomination, the real estate mogul said he's willing to be branded the ultimate insult himself.

"If you lose the Republican nomination, are you a loser?" Barbara Walters asked him during her annual "10 Most Fascinating People" special on Thursday night.

"In a certain way, yeah. Hate to say it. If I lost the nomination, yeah, I guess I'd call myself a loser," Trump said. "I've never said that about myself before."

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"Look, I want to win," he continued. "I want to make America great again. If I lose the nomination, not so good."

If Trump flops, he'll be joining countless others whom he's openly panned:

I feel sorry for Rosie 's new partner in love whose parents are devastated at the thought of their daughter being with @Rosie--a true loser. — Donald J. Trump (@realDonaldTrump) December 14, 2011

Karl Rove is a total loser. Money given to him might as well be thrown down the drain. — Donald J. Trump (@realDonaldTrump) February 7, 2013

I watched Russell Brand @rustyrockets on the @jimmyfallon show the other night—what the hell do people see in Russell—a major loser! — Donald J. Trump (@realDonaldTrump) October 16, 2014

.@MRbelzer is a stone cold loser with no talent--why did they ever put him on "Law and Order?" — Donald J. Trump (@realDonaldTrump) November 6, 2012