Added 10 October 2026 siddhartha noun Categories: PeopleRare Words noun ! Definition from WordNet 3.1, Princeton University. More about siddhartha at Wordnik → Where our words come from → Founder of Buddhism (c 563-483 BC). Related Words: buddhagautamasiddhartasiddhatthabodhibuddagotamadebaduttasudipsridhar Back to today's word