Literally the word ajaḍa stands for any active and sentient principle as opposed to jaḍa, the inactive and the insentient. However it is used as a technical term in the Viśiṣṭādvaita school of philosophy, the chief exponent of which was Rāmānuja (A. D. 1017-1137). Dravya or substance can be divided into two groups: jaḍa and ajaḍa. Prakṛti or nature and kāla, or time are grouped under jaḍa. Īśvara (God), Jīva (individual soul), nityavibhūti (immaterial infinite domain of Īśvara) and dharmabhūtajñāna (attributive consciousness of the jīvas) are classed under ajaḍa.
See also VIŚIṢṬĀDVAITA VEDĀNTA DARŚANA.