yeast

yeast

noun

Definition of YEAST

something that arouses action or activity <taxation without representation proved to be the yeast of rebellion>

Synonyms boost, encouragement, goad, impetus, incentive, incitation, incitement, instigation, momentum, motivation, provocation, spur, stimulant, stimulus, yeast

Related Words inducement, invitation; antecedent, cause, consideration, grounds, motive, occasion, reason; catalyst, catalyzer, fuel, spark

Antonyms counterincentive, disincentive