«والتعقيد: أن يكون الكلام خفي الدلالة على المعنى المراد»
Taʿqīd occurs when an utterance does not clearly indicate its intended meaning.
The central question is not whether each word is valid but how the listener reaches what is meant. Awkward rearrangement can conceal the relationship among the words; an excessively remote figure of speech can make the intended sense elusive.
The two principal forms are verbal complexity, caused by wording and arrangement, and semantic complexity, caused by obscure figurative inference.