निरास्थnirāsthamf(आ)n. not interested in anything, not intent upon (comp.) Katha1s.
mf(आ)neuter gender not interested in anything, not intent upon (compound) Katha1s.
कोशःDictionaries
Every entry for a word in Apte, Monier-Williams, Macdonell and the Dhātupāṭha, with their abbreviations spelled out, and an analysis of its forms.