Simple past tense and past participle of hunch. (verb)
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Use "hunched" in a sentence
"They are already able to make Euphoria-based characters mimic a range of emotions, but the aim is to seed data from real people, to actually train the engine to procedurally generate emotional actions and reactions such as hunched shoulders for sadness, or a puffed out chest for aggression."
"In '04, I offered to help a very elderly, kind of hunched-over woman in Issaquah who was having trouble finding the strength to raise her car's trunk to get something out of it."
"And thus the Washington Post column on David's congressional testimony, where he is described "hunched" and said to have "barked," "growled" and "snarled" -- language you would use to describe an animal."