Irrepressible

Tom’s appetite is irrepressible.

She leaps with an irrepressible "Yippee" from the boat to the shore.

Eternal life is an irrepressible human desire.

Theirs was a nervous household. Jock and Hurry confined indoors for nearly two days had had too little exercise and too many good things to eat. They were quite cross and irrepressible. John had the fidgets. He couldn't even stay in the same room for more than a minute, and he wouldn't even try sitting down for a change. Lucy had had to give up at least a dozen things that required dry weather and sunshine. She seemed to take the rain as something directed particularly against herself by malicious persons. Evelyn, also cross and nervous, was on the point of retiring to her own room to write letters. Just then Dawson Cooper telephoned to know if she cared to take a little walk in the rain and she accepted with alacrity.

[...] here the two friends burst into a variety of giggles, and glanced from time to time, over the tops of their pocket-handkerchiefs, at Nicholas, who from a state of unmixed astonishment, gradually fell into one of irrepressible laughter [...]

The irrepressible landlady gave the freest expression to her feelings.

Schomberg, [...] an irrepressible retailer of all the scandalous gossip of the place, would, with both elbows on the table, impart an adorned version of the story to any guest who cared to imbibe knowledge along with the more costly liquors.

"The irrepressible Yank is knocking at the doors of their temples and he will want to sell 'em carpet-sweepers for their harems."

It was Paris' irrepressible High Fashion Doyenne Gabrielle ("Coco") Chanel, 80, so-soing this and high-hatting that, while Women's Wear Daily took notes.

High-strung and irrepressible, George Jefferson quickly became one of America’s most popular television characters, a high-energy, combative black man who backed down to no one.