Adjective

(en-adj)

Not containable or controllable.

* 1858 , , Nicholas Nickleby , ch. 15:

"...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...

(of a person) Especially high-spirited, outspoken, or insistent.

* 1875 , , The Law and the Lady , ch. 3:

The irrepressible landlady gave the freest expression to her feelings.

* 1900 , , Lord Jim , ch. 19:

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.

* 1901 , , The Octopus , Book II, Conclusion:

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

* 1963 July 12, " People," Time :

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.

* 2012 July 24, , " Sherman Hemsley, ‘Jeffersons’ Star, Is Dead at 74," New York Times (retrieved 16 June 2013):

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.

Adjective

(en adjective)

Unable to be stopped.

King Hrothgar thought that Grendel was unstoppable .

* {{quote-news

, year=2011 , date=October 20 , author=Jamie Lillywhite , title=Tottenham 1 - 0 Rubin Kazan , work=BBC Sport citation , page= , passage=However Russian Pavlyuchenko stunned his compatriots with an unstoppable 25-yard drive into the top corner.}}