n. 25B6; noun INITIATOR, prime mover, motivator, architect, designer, planner, inventor, mastermind, originator, author, creator, agent; founder, pioneer, founding father; agitator, fomenter, troublemaker, ringleader.
INSTIGATOR
Meaning of INSTIGATOR in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012