12
originator(noun, sign, spring, producer, author)
10
predecessor
9
founder(noun, person, originator, producer, author)
8
creator(noun, leader, spring, originator, producer)
8
driving force
7
architect(noun, leader, spring, originator, producer)
7
author(noun, sign, spring, originator, producer)
7
instigator
6
father
6
inventor(noun, leader, originator, producer, author)
6
maker(noun, spring, originator, producer, author)
5
builder(noun, leader, spring, supporter, originator)
5
designer
5
inaugurator
5
introducer(noun, leader, supporter, originator, producer)
4
forerunner(noun, herald, messenger)
4
generator(noun, spring, originator, producer, author)
4
implementer
4
institutor
4
prime mover(noun, expression, originator, producer, author)
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APASmart Define. (2015). initiator thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/initiator/thesaurus/synonyms
ChicagoSmart Define. 2015. "initiator thesaurus" https://smartdefine.org/initiator/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, initiator thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/initiator/thesaurus/synonyms>.
MLASmart Define. "initiator thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/initiator/thesaurus/synonyms>