अस्तिनास्तिastināstiind. partly true and partly not, doubtful L.
indeclinable partly true and partly not, doubtful Lexicographers
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.