Incentive. Inducement, incitement, spur, impulse, stimulant, goad, motive, cause, encouragement, rousing, excitation.
Ant. Deterrent, prohibition, warning, discouragement, dissuasion.
Inception. Beginning, inauguration, commencement.
Ant. Ending, finis, conclusion, termination.
Incessant. Ceaseless, continual, unceasing, unremitting, perpetual, constant, everlasting, eternal, uninterrupted, unintermittent.
Ant. Periodic, occasional, intermittent, interrupted.
Incidence. Impact, stroke, impingement.
Ant. Reflection, resilience, rebound.
Incident, n. Event, occurrence, circumstance, chance, accident, fact, adventure, casualty.
Ant. Cause, antecedent, reason, tendency, inducement, influence.