'overbalance' is correct and usable in written English.
You can use it to describe something that is disproportionate or out of balance, or when something has been given too much importance relative to other factors. For example, you might say: "The company's focus on short-term profit overbalance any considerations of the environmental impact."
OSBERT SITWELL.By Philip Ziegler.Chatto; 460 pages; £25HE LOOKED like an ostrich: "He had the same slightly ponderous dignity and air of one who might suddenly overbalance and tip forwards".
He had been hired, he reasoned, because of his known courage, and he trusted that to overbalance minor irregularities.
But an overbalance attracts others to its economic core.
It was not an equality of power that brought the Soviet Union to heel, but a surplus of power, or an "overbalance" in the hands of the West.
It has all the elements in place: a Christmas setting, a fable about money not being important (the story is Dickensian in sentiment, Shavian in form), a rich vein of comedy, and some sharp black comedy that doesn't overbalance the essential heartfelt hokiness.
Hand in hand with that we must frankly recognise the overbalance of population in our industrial centres and, by engaging on a national scale in a redistribution, endeavour to provide a better use of the land for those best fitted for the land.
Rudy's paper clip had overbalanced him.
"The market is overbalanced," said Mr. Naimi, who put Saudi oil production at 9.125 million barrels a day in February and 8.292 million barrels a day in March.
This possibility is more than overbalanced by difficulties faced by the rest of the so-called Piigs (Portugal, Italy, Ireland, Greece and Spain), all of whom face similar issues with high budget deficits and an inability to compete with Germany.
Video footage from a rally in Lahore showed Mr. Khan falling about 15 feet to the ground, head first, after supporters standing alongside him apparently overbalanced as a forklift hoisted them onto the stage.
At the edge of the boat, two men overbalanced, fell into the water, and drowned.
