Malformed means badly shaped from birth or growth. A malformed limb, malformed crystals, malformed data.
Applied to a person the word is clinical and often best avoided in favour of naming the particular condition. In computing it is entirely neutral and very common — malformed data is data that does not match the expected shape. The mal- means badly.
1adjectivemalformedBadly shaped from birth or growth.
“The baby was born with a malformed heart and needed surgery within days.”
malformed is a quality of shape.
Also accepted in games: deformed
From mal- + formed.
Etymology from Wiktionary, CC BY-SA
Practised in A Song of Ice and Fire