Simple past tense and past participle of overstretch.(verb)
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Use "overstretched" in a sentence
"Megawolf grinned and the expression overstretched the natural boundaries of his lips."
"Meanwhile, we will continue to keep nearly 140,000 troops in Iraq while our military is overstretched, which is still at or even above pre-surge levels."
"Britain's "overstretched" armed forces will fight in Iraq for at least another five years ... troops will be serving on operations in the Gulf until at least 2012."