The feeling (of pain etc.), which is experienced in that state of consciousness by a Jīva (soul) which is bereft of the mental faculty, (or a person who is lacking reasoning power).
duvihā vedaṇā paṇṇattā, taṃ jahā ṇidā ya aṇidāya...
(Prajñā 35.16)
anidā cittavikalā samyagvivekavikalā vā.
(Prajñā 35.16 Vṛ Pa 557)