Synonyms for Compulsion:

n.

responsibility, commitment, accountability, trust, duty, guardianship, onus, concern. as is someone's wont, ritual, custom, way of life, tendency, habit, daily life, routine, common practice, addiction, preoccupation, take to. violence, attack, strength. cause (noun)
root, determinant, cause, grounds, drive, mainspring, compunction, stimulus, factor, motive, action, inspiration, effectuation, provocation, origination, basis, elicitation, force, motivator, evocation, generation, enforcement, execution, source.
compulsion (noun)
obsession, irresistible impulse, coercion, obligation, duress, incitement, motivation, intimidation, pressure.
drive, obligation (noun)
pressure, obsession, coercion, demand, preoccupation, duress, necessity, force, constraint, duty, drive, need, urge.
motive (noun)
facilitation, energy, induction, fermentation, fire, goading, urge, fomentation, propulsion, magnetism, catalyst, prompting, trigger, stimulation, enticement, irresistible impulse, impulsion.
obligation (noun)
need, demand, constraint, requirement, mandate, must, necessity, inexorability.
obsession (noun)
obsession.
pressure (noun)
restraint.
propulsion (noun)
Throwing, thrust, pushing, Shoving.
requirement (noun)
requisite, prerequisite, imperative, inevitability, proviso, stipulation, condition.
restraint (noun)
restraint.
violence (noun)
violence.

Other synonyms:

responsibility, duty, guardianship, accountability, onus. restraint, commitment, concern. trust, violence. strength. dependence
addiction.
Other relevant words:
responsibility, irresistible impulse, restraint, attack, routine, onus, preoccupation, habit, trust, violence, tendency, duty, custom, accountability, ritual, guardianship, addiction, commitment, obsession, concern, strength.

Usage examples for compulsion

  1. As we have seen, Grace had given her heart to Hilland by a compulsion which she scarcely understood herself. – His Sombre Rivals by E. P. Roe
  2. The best love is only given freely without any compulsion of any sort, save only love's sweet compelling. – Quiet Talks on the Crowned Christ of Revelation by S. D. Gordon
  3. " She has chosen for herself," he said, " without compulsion on anyone's part." – The Gadfly by E. L. Voynich