noun, adjective Informal.
Examples from the Web for darndest
“Basically I thought of it as Kids Say the Darndest Things meets The Colbert Report,” he says.Beck Bennett: Meet That Guy in Those Adorable AT&T Commercials|Kevin Fallon|April 9, 2013|DAILY BEAST
Doing our darndest to protect religious liberty in a very broad sense is a start, and a most important one at that.
But these are kids, you think, and kids say the darndest things.
In the meantime, one thing is for sure: The Canadian people are doing their darndest to stay positive.
I thought everybody knowed Asa and Bige; theyre twin brothers, and two of the darndest chaps that ever lived.The Boy Patrol Around the Council Fire|Edward Sylvester Ellis
It's the darndest news—the—the darnedest good news ever you heard in your life.The Portygee|Joseph Crosby Lincoln
I have the darndest feeling I've been through almost as big nightmares with you before, Sep.Operation Earthworm|Joe Archibald
“You kin do your darndest,” rejoined Rock in the same sullen tone.The Free Lances|Mayne Reid
I keep my job, and try my darndest to do a good and honest job.Dreaming of Dreaming|Peter E. Williams