Absolutely indirect (mediate) knowledge-
That knowledge, through which the knowable object is not perceived directly either by soul or by sense-organs and mind, e.g. anumāna jñāna (knowledge through inference).
ekāntenā"tmana indriyamanasāṃ cā'sākṣātkārenopajāyamānatvādekāntaparokṣam.
(ViBhā 95 Vṛ)