so badly formed or out of shape as to be ugly; "deformed thalidomide babies"; "his poor distorted limbs"; "an ill-shapen vase"; "a limp caused by a malformed foot"; "misshapen old fingers"
If you describe something as misshapen, you think that it does not have a normal or natural shape. misshapen vegetables Her hands were misshapen by arthritis. not the normal or natural shape (mis- + shapen, old past participle of shape)
(prefix.) partly from Middle English, from Old English; partly from Middle English mes-, mis-, from Old French mes-, of Germanic origin; akin to Old English mis-; akin to Old English missan to miss.