«وضعف التأليف: كون الكلام غير جار على القانون النحوي المشهور»
Defective construction occurs when an utterance does not follow the established grammatical rule.
The defect concerns syntax and relations among the words. All component words can be correct in themselves while the arrangement departs from recognized syntactic practice.
Contrast: Phonetic discord makes pronunciation cumbersome; defective construction involves grammatical relations, pronoun reference, or syntactic order, even if the sentence is easy to pronounce.