malformed
Definitions
Badly or improperly formed; misshapen.
Not conforming to a standard or expected structure, especially in computing or data.
Examples
The data packet was rejected by the server because it was malformed.
The plant grew in a strange, malformed shape due to the lack of sunlight.
Synonyms
deformed misshapen distorted twisted warped irregular defective
Antonyms
well-formed perfect symmetrical shapely regular normal flawless