The articulation of speech which cannot convey the specific meaning;
Satyāmṛṣā (miśra) Bhāṣā (articulation which is mixture of truth and lie) and Asatyāmṛṣā (Vyavahāra) Bhāṣā (speech which is neither truth nor a lie-speech for pragmatic purposes) fall under the category of Aparyāptikā Bhāṣā.
na pratiniyatarūpatayā'vadhārayituṃ śakyate sā aparyāptā, sā ca satyāmṛṣā asatyāmṛṣā vā.
(Prajñā 11.31 Vṛ Pa 257)