Impetus

hard

IM-pih-tus

noun

Definition

The force or energy with which a body moves; a driving force

Examples

The new funding gave fresh impetus to the research project.
Her success provided the impetus for others to follow.

Synonyms

stimulusmomentumcatalystincentive

Antonyms

deterrenthindranceobstacleimpediment

Categories

GRE Tip

Impetus is a hard-difficulty GRE word. On the GRE, you might see it paired with synonyms like "stimulus" or "momentum" in Sentence Equivalence questions. Look for contrast clues (however, despite, although) that signal the opposite meaning. Words like "deterrent".

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