impetus Synonym

drive - momentum - stimulus - motivation - incentive - spur - push - impulse - catalyst

Impetus refers to the force or influence that makes something happen or happen more quickly. It can describe a physical push or momentum, for example in physics when an object gains speed, or a figurative drive, such as the motivation or stimulus behind a project, decision, or change. In everyday language, it often highlights the key factor that triggers action, progress, or development, like an event giving new impetus to a discussion, an economy, or a personal goal.