impetus Synonyms

impulse impulsion drift incentives stimulator stimulation stimulant steam stateful spur signal reviver reason push pulsion provocation propulsion stimuli stimulus synergist motive force Spurs shot in the arm reactant pulsing propellant motive power pick-me-up driving force nerve impulse motivation catalyst velocity urge thrust prod pressure power enzyme enthusiasm energy energizer encouragement eland elan drive diastolic celerity cause carrot