nastika darshana | नास्तिक दर्शन
The atheistic philosophies are called nastika darshan (Devanagari: नास्तिक दर्शन ISO15919: nāstika darśana). They do not accept existence of God.
There are some nastika darshan which accept Vedas as the authority e.g. Nyay darshan. Also, there are nastika darshan that do not accept Vedas as authority e.g. Charvaka, Jainism and Buddhism.
Reference: Who am I? Who is Mine? Vol. 1, Ch. 10
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