New Jersey Gov. Chris Christie broke his silence Tuesday, saying that Donald Trump’s apology for “completely indefensible” remarks about women wasn’t sufficient — but that he’s not withdrawing his support for the Republican nominee because this election is about “bigger issues.”

Christie, one of Trump’s most loyal surrogates, said his candidate needs to show more contrition for a recently unearthed 2005 interview that showed him admitting to vulgar, predatory advances on women.

Trump has tried to minimize his troubling “Access Hollywood” words by chalking the episode up to harmless locker room humor.

“He should have been much more direct and much more focused on saying just ‘I’m sorry’ and only ‘I’m sorry,’ ” said Christie as he co-hosted WFAN’s “Boomer & Carton” show with sports radio host Craig Carton.

Christie said he was stunned to hear Trump’s recorded words.

“It’s completely indefensible and I won’t defend it and haven’t defended it,” said Christie. “That kind of talk and conversation even in private is just unacceptable.”

Christie had been silent on Trump’s “Access Hollywood” comments until Tuesday morning.

Still, the Trump loyalist said he’s sticking with him, unlike some Republicans who’ve withdrawn their endorsements.

“I’m really upset about what I heard, but in the end, this election is about bigger issues than that,” Christie continued.

“I’m still supporting Donald. Obviously I was disappointed by what happened and disappointed in some respects by the response initially, but I am still supporting him.”