Hesitancy rhymes with:
accountancy, consistency, constancy, consultancy, expectancy, incompetency, inconsistency, inconstancy, latency, militancy, potency
Hesitancy sounds like:
hastening, hastens, hasting, hastings, heightening, heightens, hesitating, hesitations, hesston's, hoisting, hostench, hosting, houghton's, houston's, hustings