impel (verb) - to drive, force or urge; to impart motion to [im-pel]
BREAKDOWN: IM- (in) + PEL- (drive)
impellent is another way to say impelling or driving forward
an impulse is a wish, urge, push, or force that impels
impulsive means driven by impulse or transient feelings; having the power to incite action
“The quest for certainty blocks the search for meaning. Uncertainty is the very condition to impel man to unfold his powers.” —Erich Fromm